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Random internet people explaining math better then math teacher (i.imgur.com)

submitted 2 years ago by [email protected] to c/[email protected]

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[–] [email protected] 8 points 2 years ago (2 children)

Freya is a really good programming maths communicator so it doesn't surprise me

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[–] Makeshift 8 points 2 years ago

wow I wish we learned this kind of stuff in school

[–] [email protected] 8 points 2 years ago

I think gamedev or I guess graphics programming, visualize maths pretty well. I literally quit high school because I could never make any progress in several areas, including math class. But once I read/watch more about gamedev, programming, graphics programming on my own, I got to understand many mathematical terminologies better than I have ever been taught in any school.

[–] [email protected] 7 points 2 years ago (7 children)

I don't know her, so maybe my question is stupid, but does she explain math without using code? I, honestly, am too stupid to programing, I don't understand it. I understand summary, not the second one

[–] [email protected] 3 points 2 years ago

I don't know anything about the original post author, but product notation is the same as summation notation except that instead of adding each new term to the running total, you're multiplying each new term. You don't have to know programming to see from the code samples that the only difference in the code is += vs *= (well, maybe it would help to know that * means multiply; I honestly dont rember how common-knowledge that is).

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[–] [email protected] 7 points 2 years ago

Invented in the 50s, Fortran = FORmula Translating language. It was basically created to solve this sort of problem.

[–] [email protected] 6 points 2 years ago (6 children)

The biggest difference (other than the existence of infinity) is that the upper limit is inclusive in summation notation and exclusive in for loops. Threw me for a loop (hah) for a while.

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[–] [email protected] 6 points 2 years ago

i still don't understand but thanks

[–] [email protected] 5 points 2 years ago (4 children)

Wouldn't reducer be more precise?

[–] [email protected] 4 points 2 years ago

I think this is pretty much the imperative equivalent of foldl (\acc i -> acc + 3*i) 0 [1..4].

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[–] [email protected] 5 points 2 years ago (1 children)

Ok now try infinite for loops

[–] [email protected] 8 points 2 years ago (4 children)

while

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[–] [email protected] 4 points 2 years ago

freya is not a random internet people

[–] [email protected] 3 points 2 years ago (1 children)

Oh cool, I know who this person is, she did a couple of amazing videos on Bezier curves and splines

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