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Search - "fourier"
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RANT TIME!
Sorry guys, I know this is devRant and probably not a place to post this but am fucking burning with fury and fatigue! I should probably develop elecRant and post it there instead.
I FUCKING HATE POWER ELECTRONICS!!
I am in my final year of electrical engineering and I can fucking say with confidence that power electronics is the most fucked up unit I have seen in my life. A whole load of useless math from simple RLC circuits just to make students' lives miserable. For those who might not know, power electronics is some unit that involves use of solid state electronics(transistors, diodes etc) for power applications(switching mostly). Basically things like inverters and converters. UPS systems are an example of their applications.
Now don't be fooled by how that sounds cool and so smart, this shit is fucked up. These circuits in the attached picture might just seem like simple RLC networks with some BJTs, but they are devils in their own right. They fucking need some advanced unnecessary calculus and Fourier analysis to even calculate the simplest output current!! Worst still, some of these motherfuckers have more than 1 mode of operation,needing one to analyze some fucking 100+ waveforms. I fucking hate this shiit! I hate it!
You might say that i am just being lazy and don't want to study. Let me tell you something, FUCK YOU TOO!!19 -
TLDR: programming helped with my math weakness
I've always been bad at math. I always failed my math quizzes, and to be honest the only thing that I remember from that time was that I hated it, I didn't want anything to do with it, to hell with functions and formulas and all of that garbage.
Fast forward a couple of years. I just started my masters degree in machine learning and I'm sort of inclined to applications of deep learning in signal processing. Currently I'm writing a fourier transform in raw python and I've never had more fun. I feel like programming has helped me a lot with math, being able to see how each component behaves when you write a function helps a lot! Being able to plot things helps a lot! Not having to imagine mathematical functions as esoteric mystical wonders but being able to split them up into small components and seeing what you're doing wrong HELPS. A. LOT.
Just felt like sharing. I feel like programming has made me a generally smarter person, in regards to how I approach problems and think about stuff.4 -
Not CS degree, but EE, and totally worth the effort. Not only that without degree, I wouldn't get jobs in many companies, but I actually learnt a lot. Laplace and Fourier will be as valid in a 100 years as they were 200 years ago.
Yeah, it was fucking hard. Math was rather OK, only 50% of the students failed the first exam. EE was harder, 90% failed at the first try. That wasn't regarded as problem - on the contrary, the exams were designed to weed out. After two semesters, we already had 50% student loss.
I remember what the EE prof told us in the first semester: we would learn a lot of things, but most importantly, to think like an engineer. Didn't make sense right away, but 5 years later, I knew what he had been talking about.3 -
In my last year of high school (for those familiar with the Indian education system, that's Class 12), for my final project I made an image compressor/decompressor in Turbo C++ that used a discrete Fourier transform (DCT, actually) to work on 8x8 px blocks of images. I based it off some stuff I found about how JPEG compression works. It worked even better than I'd hoped even though it was slow as molasses (I programmed a naive Fourier transform instead of using a FFT variant). I remember jumping with joy all around my room at 3 o'clock in the morning like an excited gas molecule in a box. Fun times.
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My favorite xkcd quotes (order is not significant )
1. _*It's the world's tiniest open-source violin.*_
2. ...too honest. Scale it back.
3. I'd like to bestow upon you the first annual AWARD of EXCELLENCE in BEING VERY SMART. May you continue to grace our internet with your wisdom.
4. wait, what?
5. Yeah, uh ... I accidentally took the Fourier transform of my cat ...
6. Okay, we _suck_ at this.
7. You either need more medication or less. Not sure which.
8. I THINK EVERYONE INVOLVED HERE IS CUTE
9. World's Greatest Daughter
10. People who open bananas for the other end
11. Just for the sake of the argument, we should get a boat! You can invite the Devil, too, if you want.
12. This explain a lot.
13. My bag is 90% backup batteries.
14. Well- will you be my "it's complicated" on facebook?
15. Oh God. Gotta get out. The window.
16. Sweet! I finally got my subduction license!
17. I'll tell you later - you wouldn't appreciate the punchline over this 12kbps cell phone codec.
18. RON PAUL evolves into TRON PAUL
19. Just talk to them like a f***ing human being
20. In ordering #5, self-driving cars will happily drive you around, but if you tell them to drive to a car dealership, they just lock the doors and politely ask how long humans take to starve to death.
21. I eat my body weight in food every 31 days. That's slightly faster than the human average.
22. Nice try, Mike. Get out of the well.
23. Apollo retroreflectors
24. Can't see space vampires
25. My class on screenshots was a big hit, although for some reason I only ever sold one copy of the digital textbook.
26. WHAT.
27. Introducing The xkcd Phone 6, VIII, 10, X, 26, and 1876. We didn't start this nonconsecutive version number war, but we will not lose it.
28. My morality has evaporated over the harsh UV light.
29. Come on. Somewhere at the edge of the bell curve is the girl for me.
30. P.P.S. I can kill you with my brain.
31. Time to accelerate this giant machine up to terrifying speeds and steer it using my hands, which I am allowed to do because I took a 20-minute test in high school!
32. My normal approach is useless here
33. Wake up, sheeple!
34. Sir- strategic command has send us a lunch order.
35. Yeah, but first I'm gonna go comatose for a few hours, hallucinate vividly, and maybe suffer amnesia about the whole experience.
36. HOLY S***. Guys- people are complicated!
37. OH GOD- SPIDERS
38. Perhaps you need a crash course in taking hints. Here's your first lesson: We're not actually walking somewhere together; I'm trying to leave this conversation and you're following me.
39. How did the pole vaulters get up to our balcony?
40. Friggin' Python
41. I am the goddamn *Michael Jordan* of blurring the line between metaphor and reality. [tosses a basketball] -
This morning, my teacher in Integration course showed us a demonstration of Fourier series converging to the graph of their function using Maple.
He tells us it is advised to know how to use it and experiment in order to comprehend the lesson in a more intuitive way.
I check out the computers there to see if there is a licensed Maple software. There were none of it.
Okay then, can I get it to download on my PC ? Sure... For $100 to get a lifetime student version.
Heeeeeeeeeeeeck...2