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go dependency management is awful yeah, but pretty much everything else is great
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Jul 10, 2016 21:24
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Mr Dog posted:Then there's quaternions, which are basically a completely different way of doing rotations but idk how they apply to other kinds of transforms. you can go to 'dual quaternions' which are like regular quats except the coefficients are 'dual numbers' which are like complex numbers, except where complex numbers are "a+bi" where "i*i = -1", dual numbers are "a + be" where "e*e = 0, e != 0"
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Jul 10, 2016 21:25
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triple sulk posted:we should go back to naming languages things like cobol/fortran/delphi/prolog those names are taken
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Jul 10, 2016 21:25
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fortunately it's pretty easy to deal with. i'm experimenting with git submoduling my vendor folder and that seems good enough. there is kind of an upside to this approach: debugging libraries is really really simple. well, it would be if go had decent debugging facilities.
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Jul 10, 2016 21:26
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YeOldeButchere posted:one of the (few) nice things about quaternions is also that they take less space than rotation matrices: 4 floats instead of 16. that might not seem like a huge deal, but when you have a shitload of them and performance is an issue, it can make a pretty big difference due to one representation fitting in your cache when the other doesn't. it's part of the reason why animation code in games is one of the places where you'll find quaternions another nice thing about quats is that you can do things like https://en.wikipedia.org/wiki/Slerp
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Jul 10, 2016 21:27
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uncurable mlady posted:go dependency management is awful yeah, but pretty much everything else is great go seems like some bastard child of c and javascript we haven't gone over dependency management but from what i've seen i don't think i'm ever using a library outside of go core
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Jul 10, 2016 21:34
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uncurable mlady posted:go dependency management is awful yeah, but pretty much everything else is great go is literally "worse is better: the language"
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Jul 10, 2016 21:41
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does go have generics yet?
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Jul 10, 2016 21:44
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fritz posted:you can go to 'dual quaternions' which are like regular quats except the coefficients are 'dual numbers' which are like complex numbers, except where complex numbers are "a+bi" where "i*i = -1", dual numbers are "a + be" where "e*e = 0, e != 0" not all of us are nilpotents
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Jul 10, 2016 21:44
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please tell me that go-langers are self-justifying why generics (by which I mean abstract type variables) are actually bad
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Jul 10, 2016 21:45
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gonadic io posted:please tell me that go-langers are self-justifying why generics (by which I mean abstract type variables) are actually bad i once saw a guy say generics dont matter because you can program your ide to c/p code for different types
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Jul 10, 2016 22:00
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fritz posted:you can go to 'dual quaternions' which are like regular quats except the coefficients are 'dual numbers' which are like complex numbers, except where complex numbers are "a+bi" where "i*i = -1", dual numbers are "a + be" where "e*e = 0, e != 0" what
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Jul 10, 2016 22:02
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gonadic io posted:please tell me that go-langers are self-justifying why generics (by which I mean abstract type variables) are actually bad
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Jul 10, 2016 22:07
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basically it's stockholm syndrome from golang being better than python because it has some semblance of type safety maybe some PTSD from c++ and java introducing accidental complexity through their special koolaid brand of OOP and abusing reflection to implement magic and abusing exceptions for non-exceptional things
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Jul 10, 2016 22:09
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some people prefer for loops over filter, map, fold, iterators, etc. they're wrong, of course even java of all languages has admitted their mistake
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Jul 10, 2016 22:14
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Luigi Thirty posted:what what part of "the even Clifford algebra of real four dimensional space with degenerate quadratic form" do you not understand?
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Jul 10, 2016 22:26
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all documentation of the math behind quaternions is written in the densest possible form. it's amazing
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Jul 10, 2016 22:26
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anyway I need to fix the wacky field of view next I'm just multiplying the normalized (-1 to 1 in X and Y) coordinate by 100 and centering it in the center of the screen lol I just want a 90 degree fov!
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Jul 10, 2016 22:30
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hobbesmaster posted:all documentation of the math behind quaternions is written in the densest possible form. it's amazing my final maths dissertation involved trying to get my head around a book where the writing was so dense that the author started (without explanation) to write function composition as, not even "f g h", but just as "fgh".
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Jul 10, 2016 22:37
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hobbesmaster posted:what part of "the even Clifford algebra of real four dimensional space with degenerate quadratic form" do you not understand? yeah that stuff is nonsense
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Jul 10, 2016 22:41
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gonadic io posted:my final maths dissertation involved trying to get my head around a book where the writing was so dense that the author started (without explanation) to write function composition as, not even "f g h", but just as "fgh". the first math class I took in college was taught by an incomprehensible professor who dressed in hot pants and jerked off into mathematica all class that made me go into his office hours after I failed a test to give me a college isn't for everyone speech which resulted in me skipping the next semester due to sadbrains
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Jul 10, 2016 22:44
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gonadic io posted:my final maths dissertation involved trying to get my head around a book where the writing was so dense that the author started (without explanation) to write function composition as, not even "f g h", but just as "fgh". fgsfds
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Jul 10, 2016 22:45
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"if you come from another language you probably thing this is horrible, but if you try it for a few months i'm sure you'll love it" oh cool it's stockholm syndrome as a programing language
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Jul 10, 2016 22:49
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go pretty much has the worst error handling model of this decade
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Jul 10, 2016 23:17
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MononcQc posted:go pretty much has the worst error handling model of this decade this cant be said in a world where checked exceptions exist
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Jul 10, 2016 23:33
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heres my thoughts on go - not every language should solve every problem - by and large, when you try to solve every possible problem with a language, you end up with an awful mess that ends up creating its own special hell of problems - go is good at the things go is good at (fairly small, statically linked binaries) and bad at other things - that doesn't make go bad, it just makes it a bad tool for some jobs
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Jul 10, 2016 23:35
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ask me about helping increase the speed of our installer by 500% by using the os to determine if files are present or not versus unrolling exceptions to see if files are present or not
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Jul 10, 2016 23:37
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Luigi Thirty posted:the first math class I took in college was taught by an incomprehensible professor who dressed in hot pants and jerked off into mathematica all class that made me go into his office hours after I failed a test to give me a college isn't for everyone speech which resulted in me skipping the next semester due to sadbrains what a complete rear end in a top hat "you failed a test and it couldn't possibly be due to my inscrutable teaching"
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Jul 10, 2016 23:54
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uncurable mlady posted:this cant be said in a world where checked exceptions exist wouldn't that be 'of the 90s'
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Jul 11, 2016 00:04
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eschaton posted:what a complete rear end in a top hat If this is university, you are supposed to read the degree, it isn't taught.
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Jul 11, 2016 00:14
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MrMoo posted:If this is university, you are supposed to read the degree, it isn't taught.
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Jul 11, 2016 00:29
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Actually in a similar position, I failed a course because the lecturer was terrible and we didn't have like 6 of the requisite courses. The department head reviewed our material and even stated it was an unnecessarily complicated method being demonstrated but ultimately did nothing to cancel the course. Awesome. The course was on eclectic analogue transducers, and we were not in the electronic engineering department.
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Jul 11, 2016 00:40
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one time i wrote a function with the comment "according the internet whatever this is doing is called a quaternion but i have no idea how it works" that's my quaternion story
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Jul 11, 2016 00:44
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my professors were hilarious assholes that were smug about fortran and made fun of java the entire time e: my comp sci professors. my math professors were pretty cool HoboMan fucked around with this message at 02:03 on Jul 11, 2016 |
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Jul 11, 2016 01:44
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Quaternions are actually really cool and basically a 3D extension of complex numbers and how you'd model rotation with those, and there's not much to complex numbers other than "a complex number is basically like a 2D number and you can express them in cartesian or polar forms and the way in which those two forms are related is really cool and ~*elegant*~". But you need some basic calculus to understand the relationship and also the most common practical application of complex numbers is in AC circuits where you use them to extend the rules for DC resistance into AC impedance. Which most people don't have to deal with. Whereas at least negative numbers have a really pressing practical application in most peoples' lives in the form of debt. When I was in high school I thought basic calculus and linear algebra and complex numbers were the coolest goddamn thing. Particularly linear algebra because I really wanted to write a 3D rasterizer and nobody would teach me the mathematics behind it and told me to do my algebra homework instead. So when I went to university I chose to do a joint Comp Sci and Mathematics degree. This turned out to be a horrible mistake.
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Jul 11, 2016 02:22
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python performance is really weird
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Jul 11, 2016 02:24
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Mr Dog posted:If you're defining a function that can take an arbitrary class of iterator as a parameter then that function needs to be a template and you're going to bloat the hell out of your code with all of its different instantiations. Plus your compile time will continue to take a poo poo. I mean it's a trade off, but often slightly longer compile times and larger binary size are worth it for more flexibility IMO. Just because you are writing in a language with an emphasis on speed doesn't mean that every single part of your code has to be as fast as possible.
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Jul 11, 2016 02:48
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go doesn't solve any problem and if you are using it at all for anything then you are the problem
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Jul 11, 2016 02:49
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I'd much rather install a service written in Go on my server than one written in loving PHP
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Jul 11, 2016 02:53
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go is good at the same poo poo every language is good at. great what a good reason to exist
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Jul 11, 2016 03:04
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