Inspired by a recent 196 post
This book...I read the whole thing, did most of the problems, and still don't know a thing about abstract algebra.
this post was submitted on 07 Apr 2026
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Pfffft….
Amateurs!
I see someone finally embraced the fact that C++ templates are Turing-complete and you don't really need much of the rest.
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Josuttis's books are normally pretty good, lots of examples and a clear explanation of why you might want to use something, but oof that looks akin to a kick in the essentials.
Even if you've no other reason to update to C++20, the fact that if constexpr gets rid of half the things you'd previously need to use SFINAE for, and concepts gets rid of the other half, makes it well worthwhile. Amazing how much it stops hurting when you stop doing ridiculous things.
C++ 20? I had to learn and do template metaprogramming on gcc 4.8 😭😭😭
The book is a good book though.
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Ew Java
I remember algebra. x = 2 and all that jazz. Letters and numbers mixed all willy-nilly. Surely the "commutative" part can't make it much worse.
Oh, The Kittel... one does not survive ethically to solid state physics
I noped the fuck out of that course. I'm sure it's super interesting and rewarding, but I just couldn't take it mentally at the time.
Everybody giving all these first year engineering books. Real engineers cry when they're doing their CCNA certification.
I actually did study for the CCNA and was primed to certify. I decided not to go that route and found myself in a Java class a couple years later. I now don’t use either of those things.
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My dad's grade 4 teacher used to clobber him real good with a Bible whenever he did normal kid stuff, the Bible can definitely make you cry.
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For anyone who doesn't know, this is what linear algebra looks like
You've officially lost it.
y = mx + b
It's algebra. It's linear. 😬
No way, dude. Thats affine, not algebra, and not linear. Its a lie meant to divide us.
It probably has something to do with The Elite.
Yes, The Elite Lie group where inverses allow for division.
I agree, all the other examples here are not on a single line. Some of the letters are on top of other letters, definitely not linear.
One time at work I was trying to work out a least-squares fit using linear algebra.
I have no background knowledge in linesr algebra, it felt like drawing a pentagram on the floor and chanting in backwards Latin.
you got to use numbers? i'm so jealous. we had to use matrices of variables when i learned it
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Thats not too bad. It just takes up a lot of space. Good thing I do my maths on an android tablet
may i ask what device you use? do you use a stylus pen?
Galaxy Tab S6 with the built-in stylus. It's saved me piles of paper and I like not running out of page
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Finished compsci but interned as a computer technician and there I thrived. Instead of constantly having to keep up to date on programming: subscribing to journals, attending seminars and conferences, networking with other programmers, and of course (re)studying shit to get certified.
That sounds like my time as a computer technician and then a network tech. Always chasing the next cert to stand out from the next tech. Once I switched to compsci I’ve never been pitched any certifications.
I have that book on my bookshelf. It didn't make me cry nearly as much as some C++ books.
Lessons in chemistry
Java is neat: you just get what you write. There are things that really makes you cry and Java is not among them
Just make the 200 line boiler code setup to make some
system.stuff.thingy.log.println("hello world");
Then it's not compatible with the installed vm.
Then it's not compatible with the installed vm.
This almost never happens, unless you do very niche things or have unrealistic expectations from your file system.
Niche things include using obsolete cyphers for net communication or running java code on the ibm mainframe, not something you do day to day.
Theres always Kotlin, which is like Java but for humans
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It makes me cry when modded minecraft uses 100% of my CPU and eats up 20gb of ram. (This is only a little bit java's fault)
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Java should not be used for game engine design. Stop-the-world events and poor shaders support do not help.
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JVM eats as much memory as you give it, so try playing with -Xmx param
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