this post was submitted on 30 Aug 2026

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reason enough to fail the interview (lemmy.world)

submitted 2 days ago by groctel@lemmy.world to c/programmer_humor@programming.dev

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[–] xthexder@l.sw0.com 19 points 2 days ago (1 children)

Trigonometry functions are still just a hardware lookup table in most scenarios I believe. One example I've noticed is that you'll get slightly different sin/cos results on AMD vs Nvidia GPUs due to either different lookup table values, or different interpolation functions being applied on top (I'm not sure it's possible to know for sure exactly which without internal knowledge)

[–] gens@programming.dev 8 points 1 day ago

For cpu sine is in code. X87 has a FSIN, but nobody uses it. Afaik it's just worse. Idk about gpus or if there's a standard like there is for floats in general (ieee754).