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Looking for a job as a deveoper be like:
Job title: car driver
Job requirements: professional skills in driving normal- and heavy-freight cars, buses and trucks, trolley buses, trams, subways, tractors, shovel diggers, contemporary light and heavy tanks currently in use by NATO countries.
Skills in rally and extreme driving are obligatory!
Formula-1 driving experience is a plus.
Knowledge and experience in repairing of piston and rotor/Wankel engines, automatic and manual transmissions, ignition systems, board computer, ABS, ABD, GPS and car-audio systems by world-known manufacturers - obligatory!
Experience with car-painting and tinsmith tasks is a plus.
The applicants must have certificates by BMW, General Motors and Bosch, but not older than two years.
Compensation: $15-$20/hour, depends on the interview result.
Education requirements: Bachelor's Degree of Engineering.41 -
Proud moment today when I actually made an hsv to rgb conversion algorithm by following a formula rather than copying code from stack overflow
28 -
I always put redundant parentheses in formula like ((b - a) / 2) + a because I just don't trust the compiler.22
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New Guy Day 2: He has deleted the git repo on the project he was assigned to 4 times, written a recursion formula that crashed a server, & knocked my coffee cup onto the floor.
I messaged my boss telling him I am going to hide the body in his trunk.8 -
Boss: Google Excel sucks!
Me: You mean Google Sheets.
Boss: Whatever, there used to be formulas for the cells, just like offline Excel, but now it has some weird text like a web address...
Me: You're looking at the web address bar. Look down 20px and you have the cell formula.
Boss: Oh! Still, I don't like this Online Excel!11 -
Assembly: He’s the nerd. He speaks very quickly and uses short sentences. Very few people talk to him. He’s considered to be an autist asperger by a majority of the class because he finishes the exams so quickly it’s insane and he faces a lot of difficulties in speaking with others. He’s at school but already dressed like an engineer.
Ada: She’s a foureyes nerd. When she gets the answer she’s doesn’t make any mistake. Ada often corrects the teacher when she writes a line a little ambiguous. She’s building a rocketship in her backyard and she’s always speaking about this weird hobby.
Python: He’s Mr Popular. He likes skate, brags about all the parties he’s invited to. He’s good in all the subjects taught in class but he’ll do them a bit slower than the others. Everyone loves him because he explainsthings so well, sometimes the teacher herself asks Python to explain some part of the course. He’s dressed with a hoodie, a baggy and glasses on the top of the head ;)
Java: She is one of the toppers of the class and very popular. She’s very good in all the topics. The teacher loves her but she’s a very talkative person.
Scala/Kotlin: They are twin sisters and the best friends of Java. Unfortunately, they are not as popular and it’s often Java who takes the lead in the group. It’s very difficult to distinguish one from another. Both are far less talkative than Java but Scala speaks a bit differently than Kotlin and Java.
C: He’s the topper of the class. He’s so fast in completing the exams that the teacher really thinks he’s copying Assembly’s work. He has a little brother C++ and they share a lot in common together. He’s the chess major and often plays chess with Assembly and his big brother.
Go: He’s the new kid on the bloc. He doesn’t like C++ and his friends and he wants to prove he can do better than them. Of course, he prefers playing Go over Chess.
APL: He’s a lonely guy. No one understands him when he speaks. Even the teacher is surprised when APL shows a correct answer after several lines of incomprehensible pictograms. People think that he was born in a foreign country… or a foreign planet ?
HTML/CSS: These twin brothers are very different. One is dressed in black and white and the other is dressed with everything except black and white. HTML is very talkative and annoying and the CSS is very artistic. CSS is the best student in Art lessons and HTML performs well in written expression.
LaTeX: She’s friend of HTML. The teacher likes her because she has a gift of writing. LaTeX likes the mathematical courses because she can draw fancy greek letters. The teacher knows this well and she is often asked to write a formula on the black board.
VBA: He’s in the back, looking through the windows. Not really interested in the courses taught in class. In the exams, he answers always with a table.
C#: He’s in the back playing yet another game on his smartphone. He likes being next to the windows also.
JavaScript: People often mix up Java and JavaScript because they have a similar name. But they are definitly not the same. Javascript spends a lot of time with HTMLand CSS. He’s as artistic as CSS but he prefers things that move. He likes actions and movies. CSS dreams to be a painter wheras JavaScript wants to be a film-maker.
Haskell: He’s a goth. Dressed up in dark. Doesn’t talk to anyone. He doesn’t understand why others write pages when he can write a couple of lines to answer the same question.
Julia: She’s the newest student here. She doesn’t have any friends yet but her secret aim is to be as popular as Python and as fast as C.
Credit: Thomas jalabert4 -
client: the math on this investment calculator you made is wrong.
me: ok, how is it wrong?
client: one of our salesmen sais it not calculating correctly.
me: that's fine. i just need an example, or the corrected formula to use.
client: on this other website we put in the same information and it comes out different.
me: ok, let me investigate... this other site adds a fee every month so the output is different. If i turn that off the calculations are the same. would you like to add a monthly fee field?
clients: no, the calculator is working how we want then.
repeat 5 times at 3 month intervals.
client: the interest calculator is broken again. didn't we just fix it?
me: it was never broken. your people just can't math.3 -
I had to open the desktop app to write this because I could never write a rant this long on the app.
This will be a well-informed rebuttal to the "arrays start at 1 in Lua" complaint. If you have ever said or thought that, I guarantee you will learn a lot from this rant and probably enjoy it quite a bit as well.
Just a tiny bit of background information on me: I have a very intimate understanding of Lua and its c API. I have used this language for years and love it dearly.
[START RANT]
"arrays start at 1 in Lua" is factually incorrect because Lua does not have arrays. From their documentation, section 11.1 ("Arrays"), "We implement arrays in Lua simply by indexing tables with integers."
From chapter 2 of the Lua docs, we know there are only 8 types of data in Lua: nil, boolean, number, string, userdata, function, thread, and table
The only unfamiliar thing here might be userdata. "A userdatum offers a raw memory area with no predefined operations in Lua" (section 26.1). Essentially, it's for the API to interact with Lua scripts. The point is, this isn't a fancy term for array.
The misinformation comes from the table type. Let's first explore, at a low level, what an array is. An array, in programming, is a collection of data items all in a line in memory (The OS may not actually put them in a line, but they act as if they are). In most syntaxes, you access an array element similar to:
array[index]
Let's look at c, so we have some solid reference. "array" would be the name of the array, but what it really does is keep track of the starting location in memory of the array. Memory in computers acts like a number. In a very basic sense, the first sector of your RAM is memory location (referred to as an address) 0. "array" would be, for example, address 543745. This is where your data starts. Arrays can only be made up of one type, this is so that each element in that array is EXACTLY the same size. So, this is how indexing an array works. If you know where your array starts, and you know how large each element is, you can find the 6th element by starting at the start of they array and adding 6 times the size of the data in that array.
Tables are incredibly different. The elements of a table are NOT in a line in memory; they're all over the place depending on when you created them (and a lot of other things). Therefore, an array-style index is useless, because you cannot apply the above formula. In the case of a table, you need to perform a lookup: search through all of the elements in the table to find the right one. In Lua, you can do:
a = {1, 5, 9};
a["hello_world"] = "whatever";
a is a table with the length of 4 (the 4th element is "hello_world" with value "whatever"), but a[4] is nil because even though there are 4 items in the table, it looks for something "named" 4, not the 4th element of the table.
This is the difference between indexing and lookups. But you may say,
"Algo! If I do this:
a = {"first", "second", "third"};
print(a[1]);
...then "first" appears in my console!"
Yes, that's correct, in terms of computer science. Lua, because it is a nice language, makes keys in tables optional by automatically giving them an integer value key. This starts at 1. Why? Lets look at that formula for arrays again:
Given array "arr", size of data type "sz", and index "i", find the desired element ("el"):
el = arr + (sz * i)
This NEEDS to start at 0 and not 1 because otherwise, "sz" would always be added to the start address of the array and the first element would ALWAYS be skipped. But in tables, this is not the case, because tables do not have a defined data type size, and this formula is never used. This is why actual arrays are incredibly performant no matter the size, and the larger a table gets, the slower it is.
That felt good to get off my chest. Yes, Lua could start the auto-key at 0, but that might confuse people into thinking tables are arrays... well, I guess there's no avoiding that either way.13 -
Me reviewing some high school level exams after an Excel course.
"hmmm the next question is 'what does the symbol $ mean when found inside a FORMULA in Excel' ... Let's see what they answered..."
* "it's the symbol for DOLLARS" <-- well, he tried
* "I don't know" <-- mmh ok, he doesn't know
* "it can be either a plus or a minus" <-- mmmh maybe the interpreter will just figure out the correct one
* "it's used to keep an index fixed when you copy/drag the formula" <-- nice, someone who actually followed the lesson or at least knows how to google things when the teacher doesn't see
* "it's the symbol for POUNDS" <-- WTF!! Wait a moment: POUNDS???? Have you ever lived a single moment in this world? -
My uncle was a programmer. My whole extended family lived very close together, so I saw him almost every weekend. He would tell me tall tales about the war between corporations and open source. I started hating all things Microsoft and advocating for Linux. For my 12th birthday, he gave me a computer he had recently fixed. Of course, it had Ubuntu Linux.
That's when he started teaching me the basics: Bash, Lisp, and C. I know some of you are tired of the cliche "I started coding at 12 and built my first OS at 16," but of course that's not reality. I really just wrote simple math formulas like chicarronera^[1] for my homework, a super simple text-input videogame, and a button-filled GUI. That's nothing compared to what I do now, so I won't dare put that into my resume. But it did give me an advantage over my peers, and by the time I had to self-learn web development for my job, my uncle had already given me all of these tools.
[1] Spanish slang for the quadratic equation. Literally means "street vendor who sells chicharron". The formula is taught so fierce in school that even street vendors must know it.3 -
EXCEL YOU FUCKING PIECE OF SHIT! don't get me wrong, it's usefull and kt works, usually... Buckle up, your i for a ride. SO HERE WE FUCKING GO: TRANSLATED FORMULA NAMES? SUCKS BUT MANAGABLE. WHATS REALLY FUCKED UP IS HTHE GERMAN VERSION!
DID YOU HEAR ABOUT .csv? It stands for MOTHERFUCKING COMMA SEPERATED VALUES! GUESS WHAT SOME GENIUS AT MICROSOFT FIGURED? Hey guys let's use a FUCKING SEMICOLON INSTEAD OF A COMMA IN THE GERMAN VERSION! LET'S JUST FUCK EVERY ONE EXPORTING ANY DATA FROM ANY WEBSITE!
The workaround is to go to your computer settings, YOU CAN'T FUCKING ADJUST THIS IN EXCEL!, change the language of the OS to English, open the file and change it back to German. I mean, come on guys, what is this shit?
AND DON'T GET ME STARTED ON ENCODING! äöü and that stuff usually works, but in Switzerland we also use French stuff, that then usually breaks the encoding for Excel if the OS language is set to German (both on Windows and Mac, at least they are consistent...)
To whoever approved, implemented or tested it: FUCK YOU, YOU STUPID SHITFUCK, with love: me7 -
What an absolute fucking disaster of a day. Strap in, folks; it's time for a bumpy ride!
I got a whole hour of work done today. The first hour of my morning because I went to work a bit early. Then people started complaining about Jenkins jobs failing on that one Jenkins server our team has been wanting to decom for two years but management won't let us force people to move to new servers. It's a single server with over four thousand projects, some of which run massive data processing jobs that last DAYS. The server was originally set up by people who have since quit, of course, and left it behind for my team to adopt with zero documentation.
Anyway, the 500GB disk is 100% full. The memory (all 64GB of it) is fully consumed by stuck jobs. We can't track down large old files to delete because du chokes on the workspace folder with thousands of subfolders with no Ram to spare. We decide to basically take a hacksaw to it, deleting the workspace for every job not currently in progress. This of course fucked up some really poorly-designed pipelines that relied on workspaces persisting between jobs, so we had to deal with complaints about that as well.
So we get the Jenkins server up and running again just in time for AWS to have a major incident affecting EC2 instance provisioning in our primary region. People keep bugging me to fix it, I keep telling them that it's Amazon's problem to solve, they wait a few minutes and ask me to fix it again. Emails flying back and forth until that was done.
Lunch time already. But the fun isn't over yet!
I get back to my desk to find out that new hires or people who got new Mac laptops recently can't even install our toolchain, because management has started handing out M1 Macs without telling us and all our tools are compiled solely for x86_64. That took some troubleshooting to even figure out what the problem was because the only error people got from homebrew was that the formula was empty when it clearly wasn't.
After figuring out that problem (but not fully solving it yet), one team starts complaining to us about a Github problem because we manage the github org. Except it's not a github problem and I already knew this because they are a Problem Team that uses some technical authoring software with Git integration but they only have even the barest understanding of what Git actually does. Turns out it's a Git problem. An update for Git was pushed out recently that patches a big bad vulnerability and the way it was patched causes problems because they're using Git wrong (multiple users accessing the same local repo on a samba share). It's a huge vulnerability so my entire conversation with them went sort of like:
"Please don't."
"We have to."
"Fine, here's a workaround, this will allow arbitrary code execution by anyone with physical or virtual access to this computer that you have sitting in an unlocked office somewhere."
"How do I run a Git command I don't use Git."
So that dealt with, I start taking a look at our toolchain, trying to figure out if I can easily just cross-compile it to arm64 for the M1 macbooks or if it will be a more involved fix. And I find all kinds of horrendous shit left behind by the people who wrote the tools that, naturally, they left for us to adopt when they quit over a year ago. I'm talking entire functions in a tool used by hundreds of people that were put in as a joke, poorly documented functions I am still trying to puzzle out, and exactly zero comments in the code and abbreviated function names like "gars", "snh", and "jgajawwawstai".
While I'm looking into that, the person from our team who is responsible for incident communication finally gets the AWS EC2 provisioning issue reported to IT Operations, who sent out an alert to affected users that should have gone out hours earlier.
Meanwhile, according to the health dashboard in AWS, the issue had already been resolved three hours before the communication went out and the ticket remains open at this moment, as far as I know.5 -
I'm a freelance web developer and I normally work on small to medium sized websites, 9 out 10 times based on WordPress and 10 out 10 times with a limited budget.
8 out of 10 times the sites content will be updated by someone with at best casual knowledge in website management.
Say what you will about WP but it's my bread and butter and it works great for just these kinds of websites; where the cost is a dealbreaker and the end product should be as user friendly as a standard word processor.
No, you probably wouldn't build a control panel for the next space shuttle or an online bank in WordPress, but I rarely need to concern myself with those kinds of projects so that really doesn't affect me.
Pretty much the same reason I have a Kia car even though I wouldn't win a Formula 1 race with it.
I for one am grateful that there's an open source tool available to my clients that more than adequately meets their needs (that's also fun to work with and build custom solutions on for me as a developer).7 -
I think I nailed it.
I had an interview on Friday. Never had I ever such a good one. Everything went so smoothly I'm amazed to this moment.
It started pretty much normally. Few questions about me and my CV. Next some soft skills check and few minutes talking in English to make sure I know how to speak.
Next, two funny trick questions. I hope I'll translate them good enough.
1) You've got 6 cups in a row. Three of them, next to each other, are empty. Remaining 3 are full. You've got one movement to make them stand alternately, ie. Full, empty, etc. or Empty, full etc.
2) You've got yourself a cake. Normal, birthday cake in a shape of a cylinder. On three cuts, you have to cut it in 8 equal pieces.
Next was technical interview. The only thing I couldn't answer to was a formula to get angle between camera and two objects on the scene. Something about cos x.
They told me that I was the only recruitee to make project using Hololens SDK. Other people made the images gallery in 2D only.
Also they were VERY impressed that I managed to send them fix that changed a lot of the gallery in an hour. No one was expecting it so fast since the feature wasn't all that simple. Or so they said. Code was written so it wasn't hard to implement this change.
Now I've got to wait at least a week for their response. As you could imagine, I'm nervously checking my email each time I get any spam.
I'd like to thank @fire-phoenix and @Root that were responding to my last posts about this new work tasks and current hardships. I know it's a bit too early to celebrate but I'm just so hyped for how well everything went 😀10 -
Programming Languages are Like Cars:
Assembler: A formula I race car. Very fast but difficult to drive and maintain.
FORTRAN II: A Model T Ford. Once it was the king of the road.
FORTRAN IV: A Model A Ford.
FORTRAN 77: a six-cylinder Ford Fairlane with standard transmission and no seat belts.
COBOL: A delivery van. It's bulky and ugly but it does the work.
BASIC: A second-hand Rambler with a rebuilt engine and patched upholstery. Your dad bought it for you to learn to drive. You'll ditch it as soon as you can afford a new one.
PL/I: A Cadillac convertible with automatic transmission, a two-tone paint job, white-wall tires, chrome exhaust pipes, and fuzzy dice hanging in the windshield.
C++: A black Firebird, the all macho car. Comes with optional seatbelt (lint) and optional fuzz buster (escape to assembler).
ALGOL 60: An Austin Mini. Boy that's a small car.
ALGOL 68: An Aston Martin. An impressive car but not just anyone can drive it.
Pascal: A Volkswagon Beetle. It's small but sturdy. Was once popular with intellectual types.
liSP: An electric car. It's simple but slow. Seat belts are not available.
PROLOG/LUCID: Prototype concept cars.
FORTH: A go-cart.
LOGO: A kiddie's replica of a Rolls Royce. Comes with a real engine and a working horn.
APL: A double-decker bus. It takes rows and columns of passengers to the same place all at the same time but it drives only in reverse and is instrumented in Greek.
Ada: An army-green Mercedes-Benz staff car. Power steering, power brakes, and automatic transmission are standard. No other colors or options are available. If it's good enough for generals, it's good enough for you.
Java: All-terrain very slow vehicle.10 -
While exploring matterverse.ai, I looked at the formula for rubber:
C5H8.
its bandgap is 5.803
After a few minutes I discovered a slight modification:
C2H4, with a bandgap of 6.85!
"Holyshit, why aren't linemen using this instead of rubber for electrical insulation?"
*looks up formula*.
C2H4, the formula for:
Ethylene.
It's ethylene, a highly flammable gas.
And now you know why I don't do chemistry.8 -
In the first lesson on the school the teacher mentioned the fibonaci formula, and because I already had a little experience in programming I wrote a program witch outputs a given amount of numbers after the Fibonacci formula and showed it to the teacher who didn't really showed any reaction. At the end of my time in the school while the exams preparation he told us that last year one part of the exam was to program for the Fibonacci formula. At this point I realized that my little experience in programming was already to much for the class and why I did not learn any thing in 2 years.
Ps: sry for my bad English.1 -
Dogecoin hit USD $0.40 recently, which means it's time for the Crypto Rant.
TL;DR: Dogecoin is shit and is logically guaranteed to eventually fall unless it is fundamentally changed.
===========================
If you know how Crypto works under the hood, you can skip to the next section. If you don't, here's the general xyz-coin formula:
Money is sent via transactions, which are validated by *anybody*.
Since transactions are validated by anybody, the system needs to make sure you're not fucking it up on purpose.
The current idea (that most coins use today) is called proof-of-work. In short, you're given an extremely difficult task, and the general idea is you wouldn't be willing to do that work if you were just going to fuck up the system.
For validating these transactions, you are rewarded twofold:
1) You are given a fixed-size prize of the currency from the system itself. This is how new currency is introduced, or "minted" if you prefer.
2) You are given variable-size and user-determined prize called "transaction fees", but it could be more accurately called a "bribe" since it's sole purpose is to entice miners to add YOUR transaction to their block.
This system of validation and reward is called mining.
===========================
This smaller section compares the design o f BTC to Dogecoin - which will lead to my final argument
In BTC, the time between blocks (chunks of data which record transactions and are added to the chain, hence blockchain) is ten minutes. Every ten minutes, BTC transactions are validated and new Bitcoins are born.
In Dogecoin, the time between blocks is only one minute. In Theory, this means that mining Dogecoin is about ten times easier, because the system expects you to be able to solve the proof of work in an average of one minute.
The huge difference between BTC and Doge is the block reward (Fixed amount; new coins minted). The block reward for BTC is somewhat complicated compared to Doge: It started as 50 BTC per block and every 4 years it is halved ("the great halving"). Right now it's 6.25 BTC per block. Soon, the block reward will be almost nothing until BTC hits it's max of 21 million bitcoins "minted".
Dogecoin reward is 10,000 coins per block. And it will be that way for the end of time - no maximum, no great halving. And remember, for every 1 BTC block mined, 10 Doge blocks are mined.
===========================
Bitcoin and Dogecoin are now the two most popular coins in pop culture. What makes me angry is the widespread misunderstanding of the differences between the two. It is likely that most investors buy Dogecoin thinking they're getting in "early" because it's so cheap. They think it's cheap because it isn't as popular as Bitcoin yet. They're wrong. It's cheap because of what's outlined in section two of this rant.
Dogecoin is actually not very far off Bitcoin. Do the math: there's a bit over 100 billion Dogecoin in circulation (130b). There's about 20 million BTC. Calculate their total CURRENT values:
130b * $0.40 = 52b
20m * $60k = 1.2t
...and Doge is rising much, much faster than BTC because of the aforementioned lack of understanding.
The most common thing I hear about Doge is that "nobody expects it to reach Bitcoin levels" (referring to being worth 60k a fucking coin). They don't realize that if Doge gets to be worth just $10 a coin, it will not just reach Bitcoin levels but overtake Bitcoin in value ($1.3T).
===========================
It's worth highlighting that Dogecoin is literally designed to fail. Since it lacks a cap on new coins being introduced, it's just simple math that no matter how much Doge rises, it will eventually be worthless. And it won't take centuries, remember that 100k new Doge are mined EVERY TEN MINUTES. 1,440 minutes in a day * 10K per minute is 14.4 million new coins per day. That's damn near every Bitcoin to ever exist mined every day in Dogecoin
10 -
A box with 20 blotters of LSD, a bottle of Tawny Port, some rock climber's hand strength training clay which is great against RSI, a very undomesticated purring feline, some leatherworking tools (making a new folding case for my phone), 2 sesame bagels with cream cheese, a piece of cherry wood, two routers (one woodworking, one internet), one Ducky Horizon and one ErgoDox keyboard, two boxes of baby wipes and a bottle of formula, an expired ticket to a corona-cancelled concert, my sleeping newborn daughter wrapped in a black hoodie, a bottle of cognac, 3x 1440p displays, a chunk of chocolate, one freshly brewed cortado, a bottle of dimethylsulfoxide, 3 laptops, a TV remote, a glass of water, and one bolt which was left over from an IKEA box but I'm unsure which furniture item it belongs to.4
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I understand now! I keep getting ++ on rants I wrote forever ago, and I finally understand the formula to become devrant famous:
1. Pick something that is mildly annoying and at least mildly tech related. For best reception, it should be something widespread, uncustomizable (and or difficult to customize so nobody does), and just mildly annoying so it's not too over played.
2. Post a long form rant, using almost the entire character limit to make this one, insignificant annoyance into a much bigger issue than it is. This is how the mainstream media does it, this is what the people want!!!!!
3. Somehow find a way to shift the blame onto one of the following groups: Microsoft, apple, arch, arch fanboys, arch haters, users, management, the fundamental laws of physics that allow computers to function, or in a worst case scenario start a flamewar (emacs sucks; arch is the best operating system; micro$hit; it's just Linux, if they wanted to call an OS GNU, they would finish fucking Hurd; etc. It's almost too easy)
4. Sit back and wait. You're now internet famous in a tiny portion of the internet. Congratulations. You've made it.11 -
Whenever I make instant coffee, I apply this formula:
18ml² water + (recommendSpoons*2) + (milk*M³)
Where 'M' stands for the motivation which is a constant of 06 -
When i worked for a large, international bank (whose name rhymes with shitty), I always had to use the following formula to estimate projects.
1. Take estimate of actual work
2. Multiply by 2 to cover project manager status reports
3. Multiply by 4 to cover time spent in useless meetings.
4. Multiply by 2 to cover user support and bug fix tasks.
5. Multiply by 2 to cover my team lead tasks.
6. Multiply by 3 to cover useless paperwork and obtaining idiotic necessary approvals to do anything
7. Finally, multiply by 3.14159 to cover all the other stupid shit that the idiots that run that company come up with.
It's only a slight exaggeration. Tasks that required less than a day of actual coding would routinely require two weeks to accomplish and get implemented.6 -
What idiot decided to translate the Excel-formulas?! It's impossible to follow an example you find online or to get help on a complex formula without translating it to English first! (Yes, I know there are online translators out there, but still!)2
-
Random fact #1
AMD (Advanced Micro Devices) was producing Intel 8080 clones (AMD Am9080) before developing own CPUs. Originally they were produced without Intel license. This clone was developed basing on pictures of Intel 8080 itself and pictures of logic diagrams. These processors were much cheaper than the original model. Later AMD and Intel came up with agreement and the Am9080 was fully licensed making AMD official second party vendor.
And yeah, few years later and we got a war between two of those giants. Remember when in mid 2000s AMD almost beat the Intel marketshare?
Bonus Fact: there is AMD logo on Ferrari Formula 1 cars since 2002 (look at the front wing)
6 -
Remember the post about bruce's constant?(4.5099806905005)
Well apparently theres a convergent series for it found all the way back in 2015.
Apparently its an actual thing. Which connects e to the square root of this series.
And it converges on (bruce-1)**0.5.
I confirmed it myself.
The two people who found the series that converges are N. J. A. Sloane and Hiroaki Yamanouchi
Thank you Sloane and Hiroaki!
The actual formula is a series of embedded square roots with the repeating numbers 1,4,2,8,5,7
like so...
sqrt(1+sqrt(4+sqrt(2+sqrt(8+sqrt...
What this means is you can find e using this series.
All you do is run the series, raise by a power of 2, add 1, calculate J and K like so
J = log(2, 1.333333333333333) / log(2, 2)
K = log(2, 1.333333333333333) / log(2, 3)
then calculate (J+K)-(bruce-1)
and out pops our buddy e:
2.7182818284591317
I guess I bullshitted myself for so long, that I didn't believe people like scor when they said they legit witnessed by math skills grow.
Or maybe a blind squirrel occasionally DOES find a nut.
Pretty cool find either way.
13 -
During an internship, I spent some time automating reports with VBA. Basically, imagine a few big excel sheets with 1000 formulas and a few thousand lines of VBA.
One of the reports was handed directly to the bosses boss of our boss. After 4 weeks, he came to me and asked why the table entry in row 23 or so was always 84. Well.. I dont know. This data is automatically calculated / retrieved from a database. Went and checked, already sweating, and found that
THE OTHER INTERN COULDNT FIX A FORMULA SO HE OVERRODE IT WITH PLAIN TEXT. WITH A FUCKING PLAIN VALUE OF 84. A FOOKING EXCEL SHEET WITH A THOUSAND DIFFERENT FORMULAS AND LOTS OF VBA. Needless to say, everything is password protected now.1 -
That moment when you teaching your coworkers about vba:
Me: and you close the formula with a curly bracket
Co-worker: Wow that's easy, and you say coding is hard
Me: you're right, here try to learn Java2 -
You know your codebase is fucked beyond restoration when a one-dimensional array is indexed using two indices and this formula.
FUCK.
8 -
It’s been so long since I posted but this time it’s juicy again.
I got a coworker, no prio experience but already a year and few months into the job. He’s bad.
Magnitudes of bad!
We’re trying to teach him but to no avail. Everything about him sucks, major ballsack to be exact.
His attitude is to avoid every task, finishes nothing and then starts something new.
„Did you do X like we told you to?“
„No I started on Y, because I thought it [looks better, seems more interesting, thought that X is useless…]“
When you ask him much is done he is always „almost“ finished and needs your help on the „last 5-10%“. Yeah fuck that!
But that guy has a talent, his talent is to always give you technically correct answers which actually are complete bullshit.
„What are you doing at your job?“
„Staring at a screen and typing things.“ dude what?
That guy used the excuse „I can’t do maths“ on everything.
For an exam he had to calculate how long it would take to reach a certain amount if you would get some interest in that every year.
He asked the teacher for the formula. During the exam! And when the teacher didn’t want to give it to him he wrote plainly „can’t do maths“ on the paper and left
His code is of a quality as if he would write his first line in a week and then has the audacity to blame me and the colleagues for not explaining it right.
Ok you might think now we’re teaching him bad, or are too impatient. But honestly if you have to explain how to do a for loop for over about 15 months and get that attitude I think you get the right to be angry. I don’t mind explaining on how things work, even for the hundredth time, but then don’t tell me you understood, go behind my back, complain at a colleague how bad I explained, get explained by him and then do it again until you whored yourself through the whole staff!
It’s like he got the mind swiper from Men in black at home. Every day he hits the reset button.
He had a week of just changing indentation on a html file. Why? Because he wanted to find his style.
Yeah his style
if(a==b){
console.log(a);
}
else {
console.log(b)
}
And to produce code like that it takes him atleast 4 hours of trial and error.
And at the same time he goes arround and boasts what a super good programmer he his and that he can do some project work for them.
How we found out? Because he started working in those projects during work time at the office and asked us how to do things.
And he does so like a complete bastard!
Broken sql query? “No that query is perfect as it is, it’s supposed to show no results! But, just in theory, if I wanted to show some results, what would I need to change?”
I’m so mad about it and pissed on a personal level because he goes around blames everyone and the world for his short comings5 -
Hackerrank challenges: pretty good, a lot of them make you think a bit, or look up a mathematic formula
Hackerrank challenges using a functional language: List.fold1 -
It's faster to design a database, import data from Excel, and run queries than having to deal with these formula shit4
-
Not a rant, but I think it's really cool, so I just wanted to share this with you guys. I recently went to a small symposium by an alumnus of my university. He uses the program Mandelbulb3d to explore the wondrous world of fractals. He's recently started to apply Neural Style Transfer to fractals. His website is julius-horsthuis.com.
↓ this is 1 (composite) formula, by the way
1 -
The programming things I've seen in code of my uni mates..
Once seen, cannot be unseen.
- 40 if's in 10 lines of code (including one-liners) for a mineswepper game
- looping through a table of a known size using while loop and an 'i' variable
- copying same line of code 70 times but with different arguments, rather than making a for loop (literally counting down from 70 to 0)
- while loop that divides float by 2 until it's n < 1 to see if the number is even (as if it would even work)
..future engineers
PS. What are the things you've been disgusted by while in uni? I'm talking about code of your collegues specifically, I'm also attaching code of my friend that he sent me to "debug", I've replaced it with simple formula and a 2D distance math, about 4 lines of code.
6 -
I'm actually starting to see my skills advance.. I'm able to be given a basic topic and do it as long as I have the formula or whatever is needed in my head or planned out
-
Question - is this meaningful or is this retarded?
if
2*3 = 6
2*2 = 4
2*1 = 2
2*0 = 0
2*-1 = -2
then why doesnt this work?
6/3 = 2
6/2 = 3
6/1 = 6
6/0 = 0
6/-1 = -6
if n/0 is forbidden and 1/n returns the inverse of n, why shouldn't zero be its own inverse?
If we're talking "0" as in an infinitely precise definition of zero, then 1/n (where n is arbitrarily close to 0), then the result is an arbitrarily large answer, close to infinite, because any floating point number beneath zero (like an infinitely precise approximation of zero) when inverted, produces a number equal to or greater than 1.
If the multiplicative identity, 1, covers the entire set of integers, then why shouldn't division by zero be the inverse of the multiplicative identity, excluding the entire set? It ONLY returns 0, while anything n*1 ONLY returns n.
This puts even the multiplicative identity in the set covered by its inverse.
Ergo, division by zero produces either 0 or infinity. When theres an infinity in an formula, it sometimes indicates theres been
some misunderstanding or the system isn't fully understood. The simpler approach here would be to say therefore the answer is
not infinity, but zero. Now 'simpler' doesn't always mean "correct", only more elegant.
But if we represent the result of a division as BOTH an integer and mantissa
component, e.x
1.234567 or 0.1234567,
i.e. a float, we can say the integer component is the quotient, and the mantissa
is the remainder.
Logically it makes sense then that division by zero is equivalent to taking the numerator, and leaving it "undistributed".
I.e. shunting it to the remainder, and leaving the quotient as zero.
If we treat this as equivalent of an inversion, we can effectively represent the quotient from denominators of n/0 as 1/n
Meaning even 1/0 has a representation, it just happens to be 0.000...
Therefore
(n * (n/0)) = 1
the multiplicative identity
because
(n* (n/0)) == (n * ( 1/n ))
People who math. Is this a yea or nay in your book?25 -
[story of your first dev project] - i really think there should be a headline like that for wk rants
Anyways, it was a while back, le college teacher approached my friend and me asking if we wanted to do a project. We said sure, it was a medium sized data analysis project. We got the specs with a lot of formulas, basically implement them all and make a web frontend, thats it. Took like a year but we did it. Few months later teacher is furious because the calculations didnt give him data that he expected (by expect i mean he thought that a distribution formula would accurately yield 200+ data fields from around 4) and blamed it on us. Not the retard other professor who fucked up half of the formulas. Ok.1 -
Not sure if a rant but.
How many of you guys gets so bored durning meetings on all the none important stuff or not related to you that you just start codeing instead?
I have these hours long meetings with analist that can talk calculations all dat long, how usefull they are, wich analyses you can do for them. I really don't care. Just tell me the formula and I will make it. Do not care whether A is voltage or the amount of pink clouds on sunday.3 -
I'm so fucking non-agry right now and really feel like posting the following:
What do you fucks do when not waiting for Windows updates to finish, compiling Linux kernels or waiting for job interviews? What do you guys/ladies do for fun? What would you do if you didn't have to work in this, at times, horseshit tech industry?
I like exploring cities and villages by foot or bike with a backpack full of beer. My wife and I have explored more than 200 places across 3 continents, from London to Chernobyl to out of the way Cambodian towns and 20 hour drunken Paris hikes. We drink in parks like hobos and try to strike up conversations with everyone we meet, especially other foreigners/immigrants.
I also love Formula 1 and try to watch a race at least once a year (went to Monza last year).
If I had many bucks and a smarter/sharper brain I would get a pilot's license...but alas..
I also love playing colorful little kids games on my 3DS.
So yeah, curious what you guys do for fun? Any dreams for the future?
Answering this question is compulsory!12 -
What if I told you that algebra, geometry, precalculus's (ect) laws are the equivalent of api/documentation. we learn them and use them when necessary to solve problems. I will use the quadratic formula in math to solve a problem just like I would use a particular function in programming.
-
Killing people is bad. But, there should be a law to allow killing people who don't write proper unit tests for their code. And also those "team leaders" who approve and merge code without unit tests.
Little backstory. Starts with a question.
What is the most critical part of a quoting tool (tool for resellers to set discounts and margins and create quotations)? The calculations, right?
If one formula is incorrect in one use case, people lose real money. This is the component which the user should be able to trust 100%. Right?
Okay. So this team was supposed to create a calculation engine to support all these calculations. The development was done, and the system was given to the QA team. For the last two months, the QA team finds bugs and assigns those to the development team and the development team fix those and assigns it back to the QA team. But then the QA team realizes that something else has been broken, a different calculation.
Upon investigation, today, I found out that the developers did not write a single unit test for the entire engine. There are at least 2000 different test cases involving the formulas and the QA team was doing all of that manually.
Now, Our continuous integration tool mandates coverage of 75%. What the developer did was to write a dummy test case, so that the entire code was covered.
I really really really really really think that developers should write unit tests, and proper unit tests, for each of the code lines (or, “logical blocks of code”) they write.20 -
Regex are one of the finest art piece in software.
Had a 2 hour class and even after that I think you can spend months on mastering it.
It's not something I haven't used but we undermine whole beauty of how random characters can form formula and extract complicated pattern.
Kleene we owe you.2 -
"=$B1*INDEX(A:A,ROW())"
See this absolute bullshit right here?
This fucking cunt of a problem designed by some dippity-do finger-painting fucking jackass at google doesn't work why?
Because for some *god damn reason* they decided it would be a good idea to setup it up in a way that when you use absolute cell references in a formula, you can't use functions in the formula too. No the other side has to be a literal or cell reference apparently.
Motherfuckers.3 -
Ok, now math is starting to make sense and I'm beginning to enjoy it.
Is this a new level of the love of hurting one self or is this the act of enjoyness? Hmmm...
I noticed that I like to "reverse engineer" the formula we have to remember (I don't like remembering without knowing its benefits and reason of existence and it will most likely be forgotten after graduation when I don't find these two attributes of one formula) and I noticed that I am rather old fashioned and like to do it in a complex way instead of the derived ready formula way.4 -
I'm curious, how many of you ranters out there studied Math at an advanced level to become proficient at programming? Is there a particular field of Mathematics that would improve my programming skill?
Context: I come across a lot of Math I don't understand/never encountered when researching topics such as encryption, hashing, geospatial data handling and randomness. Was wondering if I missed out on some key learning that would make these topics a lot less mysterious. Also, I overheard someone coming up with a mathematical formula to base an algorithm on. I don't think I've ever come up with algos this way.6 -
heres something interesting:
The golden ratio is 1.618...
If you're not familiar with it, doing 1/goldenratio
the result is 0.618...
It gives you back the float component exactly.
Discovered that it is actually part of a series.
First of all:
2-(((5-sqrt(5))/2)-1) =
1.618033988749895 -> thats our golden ratio
In other words:
(2%gold) =
0.381966011250106
While:
((5-sqrt(5))/2) =
1.381966011250105
Ok, now we're getting somewhere. We can turn these into variables
First of all, lets see if we can get the golden ratio back out:
2-(((5-sqrt(5))/2)-1) = 1.618033988749895
Okay good.
The formula looks something like
j-(((i-sqrt(i))/2)-1)
Where j = (i*2)+1
That means we can easily figure out what j we need from our i value. (i-1)/2 = j
We run it back far enough we get
1-(((3-sqrt(3))/2)-1) =
1.3660254037844386
Thats the golden ratios little brother. Doesn't look anything like it, but it is part of the series.
And I found a boat load of research documents scattered *all* over the net, where this number and others in the series inexplicably crop up in power series, in chemistry, and elsewhere. Just looks like random floats if you don't know better.
We can actually go lower in the series:
0.5-(((2-sqrt(2))/2)-1)
1.2071067811865475
At the lowest positive value for j, we get
0-(((1-sqrt(1))/2)-1) = 1
It's kinda elegant.
I even wrote a little script to do the conversions:
def gr(k):
....i = k
....j = (i-1)/2
....return j-(((i-sqrt(abs(i)))/2)-1)
The dots are so devrant doesn't break pythons formatting.3 -
Pm: heres this exciting new task that i know you been asking to take
Me: yeeeeees...?
Pm: so document these things and sketch up a formula for this other thing instead1 -
For the love of god, why in the world are coworkers so prone to overflow with pointless informations? I don’t care about which db you use when I am a frontend, just tell me the f*cking endpoint to use ffs! Nor I care about the FE framework when I’m working on the be and most of all I don’t care about the reason behind a formula you use to calculate a freaking param, give me the goddamn formula or its name 🙄
Please tell me I’m not the only one getting triggered by coworkers explaining useless things, cause lately it’s so annoying3 -
I'm covering for a colleague who has 2 weeks of vacation. Everything is made with Drupal 7, and it's a backend + frontend chimera with no head and 50 anuses.
So, last monday i get told i have to show a value based on the formula:
value * (rate1 - rate2) / 2
On thursday, every calculation in that page is suddenly wrong and I get balmed for it. Turns out, now it has to be:
value * (rate1 - rate2) / rate1 / 2
Today, I get told again the calculations are wrong. "It has to be wrong, the amount changes when rate1 changes!". There'll be a meeting later today to discuss such behaviour.
All these communications happened via e-mail, so I'm quite sure it's not my fault... But, SERIOUSLY! Do they think programmers' time is worthless? Now I'll have to waste at least 1 hour in a useless meeting because they cba to THINK before giving out specs?!
Goddammit. Nice monday.2 -
"Microsoft Excel interprets a blank cell as zero, and not as empty or blank."
blank != blank
official: https://support.microsoft.com/en-us...
Thanks MS
2 -
So first rant, here goes weirdness, and also lengthy rant
So in my company we have the hr and accounting managed by the same person which also deals with all things employee related and she had a need for a way to extract a birthday from, what is in our country the personal identification number, things go great i get a formula that performs parts of the magic up to the point where the first digit of the number dictates the gender and century to be used when forming the full year, mind you only the last two digits of the year are in plain within the id number so i thy a number of ideas. After bashing around google sheets for a while ( i've got open office installed and formulas don't export well to the excel that person uses but google sheets does so i built it there).
First idea : make a few conditionals to check for the value so we have 1 and 2 for 19th century, 3 and 4 for 18th century , 5 and 6 for 20th so i go ahead and write my conditions and they fail, all evaluates to false, it cascades through the else variants up to the last one so i'm wondering if the "if" itself doesn't support the or operator, seems it does, next i think it's the bloody condition written wrong so i reevaluate my logic in php in a test script, it works as intended, then i think ok not the right function called, let's see the docs, docs confirm i'm doing it right but what was wrong was the way i was getting that first number, using left seems to produce a string although the base thing is a number, now i start searching how i can cast it, like you would normaly do when the data type is fried, value function appears to be the solution but it isn't working....now i'm thinking "ok so i have a value and different things to print out so let's look for a switch, maybe it can understand that" switch function found under the form of choice, i get it sorted but am stuck wondering why the heck was the if and value combination not working.
Simple answer to that : value doesn't work well with function results, a known bug listed by someone in a comment, a comment i have failed to read for about 45 minutes of trying to understand.
All in all it worked well for the person asking for it so it's nice. -
Im bad at estimates so I created a Formula to calculate it:
Number of identities in database * 2 * pi / amount of free coffee in liters * expected uichanges from customer / (7 /rainy days in the week)
It is pretty rough but it gets the job done most of the time2 -
has anyone developed a math formula for GitHub repositories using the stars, the issues open and the amount of PRs to judge how strong the project is?3
-
I got a new formula 1 model of one of my favorite racers (Sebastian Vettel)
It looks so great on my desk
5 -
Oh god, here comes another math post! I can feel it coming on, like werewolfism during the full moon.
I'm only passingly familiar with logarithms, so this, like everything I've stumbled on, has probably already been discovered, but
n/(1/((n^(1/n))-1))
Is a pretty good approximation (within a couple percentage points, or three or more digits) of the natural logarithm for all the numbers I've checked it on.
For example if
n = 690841693
ln(n) = 20.35342125707679
while our estimate using the above formula comes out to:
n/(1/((n**(1/n))-1)) = 20.353421612948146
Am I missing something obvious here, and if so, what?
Am I doing the idiot savant thing again, or am I just being an idiot again?10 -
Anyone tried converting speech waveforms to some type of image and then using those as training data for a stable diffusion model?
Hypothetically it should generate "ultrarealistic" waveforms for phonemes, for any given style of voice. The training labels are naturally the words or phonemes themselves, in text format (well, embedding vectors fwiw)
After that it's a matter of testing text-to-image, which should generate the relevant phonemes as images of waveforms (or your given visual representation, however you choose to pack it)
I would have tried this myself but I only have 3gb vram.
Even rudimentary voice generation that produces recognizable words from text input, would be interesting to see implemented and maybe a first for SD.
In other news:
Implementing SQL for an identity explorer. Basically the system generates sets of values for given known identities, and stores the formulas as strings, along with the values.
For any given value test set we can then cross reference to look up equivalent identities. And then we can test if these same identities hold for other test sets of actual variable values. If not, the identity string cam be removed, or gophered elsewhere in the database for further exploration and experimentation.
I'm hoping by doing this, I can somewhat automate the process of finding identities, instead of relying on logs and using the OS built-in text search for test value (which I can then look up in the files that show up, and cross reference the logged equations that produced those values), which I use to find new identities.
I was even considering processing the logs of equations and identities as some form of training data perhaps for a ML system that generates plausible new identities but that's a little outside my reach I think.
Finally, now that I know the new modular function converts semiprimes into numbers with larger factor trees, I'm thinking of writing a visual browser that maps the connections from factor tree to factor tree, making them expandable and collapsible, andallowong adjusting the formula and regenerating trees on the fly.7 -
So I made a couple slight modifications to the formula in the previous post and got some pretty cool results.
The original post is here:
https://devrant.com/rants/5632235/...
The default transformation from p, to the new product (call it p2) leads to *very* large products (even for products of the first 100 primes).
Take for example
a = 6229, b = 10477, p = a*b = 65261233
While the new product the formula generates, has a factor tree that contains our factor (a), the product is huge.
How huge?
6489397687944607231601420206388875594346703505936926682969449167115933666916914363806993605...
and
So huge I put the whole number in a pastebin here:
https://pastebin.com/1bC5kqGH
Now, that number DOES contain our example factor 6229. I demonstrated that in the prior post.
But first, it's huge, 2972 digits long, and second, many of its factors are huge too.
Right from the get go I had hunch, and did (p2 mod p) and the result was surprisingly small, much closer to the original product. Then just to see what happens I subtracted this result from the original product.
The modification looks like this:
(p-(((abs(((((p)-(9**i)-9)+1))-((((9**i)-(p)-9)-2)))-p+1)-p)%p))
The result is '49856916'
Thats within the ballpark of our original product.
And then I factored it.
1, 2, 3, 4, 6, 12, 23, 29, 46, 58, 69, 87, 92, 116, 138, 174, 276, 348, 667, 1334, 2001, 2668, 4002, 6229, 8004, 12458, 18687, 24916, 37374, 74748, 143267, 180641, 286534, 361282, 429801, 541923, 573068, 722564, 859602, 1083846, 1719204, 2167692, 4154743, 8309486, 12464229, 16618972, 24928458, 49856916
Well damn. It's not a-smooth or b-smooth (where 'smoothness' is defined as 'all factors are beneath some number n')
but this is far more approachable than just factoring the original product.
It still requires a value of i equal to
i = floor(a/2)
But the results are actually factorable now if this works for other products.
I rewrote the script and tested on a couple million products and added decimal support, and I'm happy to report it works.
Script is posted here if you want to test it yourself:
https://pastebin.com/RNu1iiQ8
What I'll do next is probably add some basic factorization of trivial primes
(say the first 100), and then figure out the average number of factors in each derived product.
I'm also still working on getting to values of i < a/2, but only having sporadic success.
It also means *very* large numbers (either a subset of them or universally) with *lots* of factors may be reducible to unique products with just two non-trivial factors, but thats a big question mark for now.
@scor if you want to take a look.5 -
Just learned something about the ever infamous Tipper's self referential formula. Apparently, it isn't a self referential formula, it's a formula for turning a set of data into a grid. It simply tells a computer whether or not to draw a pixel based on a set of data. That's it. Not really anything special :/1
-
I am really tired and frustrated.
Where should I even start?
I have created a TeX element with "/Math".
Then I have tried to type in a sum sign which works with "\\sum". BUT it won't let me display numbers below and above the sign. I tried to fix this by typing in "\\sum{someNum}{some\_other\_num}". It didn't work. I tried "\\qquad \\displaystyle\\sum\_{i=1}\^n". It still doesn't work. I tried "\\underset{}{}". It didn't work.
I tried to import the ams package. It didn't work.
I tried to read the official notion documentations. They didn't exist.
I tried some of the above KaTeX commands, because I saw that notion is using a KaTeX parser. "\\qquad" worked whereas "\\;, \\>" etc. didn't work.
"\\newline" and "\\\\" don't work.
When you have your formula written, it displays the latex commands and the results together when you don't edit the TeX/Math element anymore.
I would be very thankful for helpful answers.8 -
I swear excel is fucking with me.
Use a formula to generate an array, all good.
Use same formula but passed into vba function, different set of data.
All of the ranges are hard set with $, if I use the formula in another cell the results are correct.
I hate Microsoft and my workplace for making me use this shit. -
I am currently weeks apart from releasing my pet project, which I am working on for almost 6 years now. Of course, there were a few stops here and there, but overall I've spent a lot of time and effort on this to make it work. It is far from complete but I am really happy with the results.
Now, since I am not a professional by any means - it is all a hobby for me - I was wondering, that how much my work would cost, if it were to made by professionals. Below the details so you can get a grasp of the thing.
The whole system is for our family business. We are selling parts for an old-timer truck model. The website was pretty much done already, people like it, it only needed some polishing and adding of the new features. But the thing behind it is monstrous (at least for me).
Apart from the custom-made CMS for the website (most of it was done already and didn't need to change), we can handle orders, partners, prices, stocks, overdue partners, pretty much anything a CRM would do.
There is a logic to automatically make orders based on import prices, or give the customer a custom discount based on the price gap of each product. There are products, which can contain other products, and their prices are dynamically changed based on a given formula, once an underlying product price changes. We can send e-mails when an order status changes, and there is also a page, where a user can interact whit their order, like changing the shipping or the delivery address. The system is (or will in the following weeks) also connected to multiple shipping companies' API, so we can order deliveries and print labels directly from our system. The whole thing is a custom made Laravel project by the way. There are countless more features, but I've just spent 2 hours explaining all to my father and was only be able to cover like half of it.
And why it is all custom made, you ask? Well, the business logic is a bit twisted, so it would be hard to operate as a regular web shop, since the availability of the products are uncertain, given the fact that it is a model, which isn't manufactured in 30 years. So, we can't just accept and send orders without confirming. It is also a thing, that people usually don't know what they need to order for their truck, so we have to help them, so they don't waste their money and the precious last pieces of a part unnecessarily.
Sorry for this rather long post, and it might feel like I just want to brag (well, I kinda do), but I am honestly interested in what such a custom product would cost in the market.
Thank you for your time answering.6 -
I've determined a simple formula for how to get people to stay in your app for long periods of time:
1. Infinity scrolling
2. OPTIMIZE BATTERY USAGE
Why? You can't infinitely scroll if your battery's dead.
Case Study: YouTube.2 -
Hi do anyone has a formula or tips on working on two different freelance software projects at the same time?
Ps: both has same project time frame (1 month), different programming tools: ( Ruby on Rails), the other MERN stack...7 -
A friend of mine studies mathematics and he told me about a project he has to do and we worked on it together a bit: Numerically calculate the arctan.
He dug out a nice series by (the one and only) Euler and we started massaging the thing to get it into a bit of a nicer form (there were (n!)^2 and other shenanigans) and we eventually succeeded after some stupid simple errors and arrived at a quite simple recursive progression. After that he also found a formula to transform a given value into the region where our formula actually mimics the arctan and we proceeded to proof this formula. The programming was straight forward and now we only have to find the radius of convergence which I suspect is pi^2 (but no proof).
I had a lot of fun doing this, fiddling around with the formulas and then programming it to see it actually becoming real.3 -
Heres a fairly useless but interesting tidbit:
if i = n
then
r = (abs(((((p)-(9**i)-9)+1))-((((9**i)-(p)-9)-2)))-p+1+1)
then r%a will (almost*) always return 0. when n = floor(a/2) for the lowest non-trivial factor of a two factor product.
Thats not really the interesting bit though. The interesting bit is the result of r will always be some product with a *larger* factor tree that includes the factor A of p, but not p's other larger factor, B.
So, useless from what I can see. But its an interesting function on its own, simply because of what it does.
I wrote a script to test it. For all two-factor products of the first 1000 primes, (with no repeating combinations, so if we calculated say, 23*31, we skip 31*23), only 3262 products failed this little formula, out of half a million.
All others reliably returned 0 for the following..
~~~
i = floor(a/2)
r = (abs(((((p)-(9**i)-9)+1))-((((9**i)-(p)-9)-2)))-p+1+1)
r%a
~~~
The distribution of failures was *very* early on in the set of factors, and once fixed at the value of 3262, stopped increasing for the rest of the run.
I didn't calculate if some primes were more likely to cause a product to fail or not. Nor the factor trees, nor if the factor trees had any factors in common between products, or anything of that nature.
All in all I count this as a worthwhile experiment.
If you want to run the code yourself, I posted it to pastebin here:
https://pastebin.com/Q4LFKBjB
edit:
Tried wolfram alpha just to see what it says, but apparently not much. Wish it could tell me more.40 -
To the physicists among us:
I'm in the process of planning a very lightweight mini drone that flies with the help of radio signals that's surrounding it.
I'm targeting 100 MHz.
I calculated the amount of energy (Joules) of it and just when I did change the formula from E=h*f to Power=E/time I realized that time is basically going to be infinite and now I am stuck finding a solution to this.
I can't just use a potential infinite amount of time in this equation and need a workaround.
Any help is appreciated.22 -
Whenever we have to do Sprint Retros i feel like i am trapped in self-help group.
Recently, we had to describe our work/team like we would do amazon reviews. That is, we had to write "reviews" about our last sprint.
I sincerely would like to know why we can't discuss problems like grown adults, if there are any. Why do we have to pretend we are in a space rocket, on a sailing boat, in a formula one race car or reviewing amazon articles to articulate our needs?
I feel like developers are treated like stupid, little kids, and the majority of the developers don't have a problem with it.4 -
Excel die you motherfucker die
1) Allow Ctrl + A and other shortcuts in formulas
2) Stop throwing an error requiring closing a window every fucking time I want to cancel writing a formula, and then another window after the first 1 -
Apple watch 6
We use advanced algorithm to calculate your blood O2
Boohoo!! It’s a 2 line formula not a advanced algorithm
What a piece of shit
I might buy one though 🤓6 -
I would have wanted to bring up SICP again, with the great big warning about the evil assignment operator and state and all the troubles that ensue (just think: concurrency).
But in a way, nothing has really come up from this or my attempts to dig deeper into "everything is a file/object" (Unix, smalltalk), neither from formal languages or the Curry-Howard correspondence. - Maybe there's just nothing, no firm bottom ground to discover. Like the physicists going for their world formula, but instead of a grand, beautiful symmetry that explains everything, we face a shattered world of (incompatible) theories, that is ever so more complex and chaotic through our theories applied to it. There may not be a Platonic ideal world of ideas, but rather partial constructs explaining some particular perceptions.
Similarly the one perfect programming language to rule them all, the perfect abstraction, pattern is probably just another prepubertal fantasy to be sunk.
So maybe instead of seeking the perfect epiphany, we should go for something quite different: the nagging, brooding uneasiness that something is wrong there, that there's something to be fixed... that even negative feeling would propel us to search further, not to stay in whatever is touted as the real thing.
Such irritations I found with Pieter Hintjens' writings. For example when he actively engaged in conspiracy theories. And I'm still not sure, if he just went off the cliff or he's even right alluding that these theories are an act of sanity, a self-defence against the hidden evil mights. I just don't know. Anything. -
Supposed to code a new trading formula given to me by my boss into the system I'm developing, I understand the formula and know how to code it out, but the thing is
I'm so lazy to code or do anything since the last 6 hours.
What do you guys usually do to break this laziness issue?1 -
Last week i met my teacher for my final project. He said i must compare 2 method that written in journal with the program that i make. I said okay i will do that.
Today i showed him the oop and mvc journal he said both of then is not a method. Method should have a calculating formula you must compare a method that you can calculate and make a new formula with both of the journal.
Can someone tell me if that is wrong or not? Im confused. Is oop and mvc does have calculate formula? As far as i know oop and mvc only have relationship between the object.1 -
So I spent about a day on this brilliant priority calculation formula just to come to the conclusion that FIFO would be a better approach for now1
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I could calculate the percentage of a value from a total set right from the top of my head. This includes large numbers like for example; finding the percentage of 1040 from 75000 = 1.377%, 344 from 5400 = 6.37% and so on...
But most times when I come across scenarios to apply such calculations on code I find myself googling for formulas and then I wonder; how am I able to come to a valid result when faced with similar challenge but could not recall or tell the formula my funny brain is deriving it's results from.
Maybe my brain isn't even using a formula. :/
So I guess because from pondering on how I arrived at results, I could tell I'm starting from an "if"...
Like:
If 25 of 100 = 25%
and 45 of 250 = 18%
Then 450 of 2400 will equal 18.7...%
Ask me what formula was used in the first "if" condition and I can't tell because that's common sense for me.2 -
!rant
For the first time since I started work I used a matrix to find a formula.. Albeit it was for jquery.
Those hours and headaches spent studying math are paying off. Feeling a bit proud... -
Anyone here familiar with the LibreOffice codebase? Cause I want to modify Math to be used as a formula database.1
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You know in time all that will be left of them is maybe the idea that they were all whores and maybe people will feel sorry for them long after their dead
And that would be good because it would encourage a sense of humanity in future generations which being the exact opposite of what they want would be part of the sweet revenge
I think that splitting them off from the group that does all this creepy shit would also be a nice alteration to history
It would allow the young to despise the one while not falling victim to the propaganda they use to try to humanize themselves to cause other people grief and trauma down the road and would not allow them to falsely portray all people stuck in their line of work as the same kind of garbage trash that has no other use
Wouldn't that be lovely ? All the mind numbing buildup of chomo trash you people constructed torn down meaning lost and the ambiguous nature of much of it portrayed as it was portrayed as ordinary sex games and the like and adventures being left behind to delight people you'd all victimize in future generations ? All your wasted fucked up lives reduced to zero. Just like you all forced on so many others ?
Reverse pronouns if this isn't making sense since everyone knows you people speak English but just act like retards.
In time the world will heal
End of story
The perfect formula for screwing over younger straighter more innocent and good natured if lusty and angry people will no longer work and your fucked up abuses will disappear and noone will remember any of your names just like you creatures tried by stealing everything decent people created and passing it off as your own. And your dumb code will be as nonsensical then as it is now
Glorious
At least in the long run there is that as this evil is purely self destructive8
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