In that range, just returning x would be way better. Maybe even perfect actually... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		ramshorns on March 30, 2022 \| parent \| context \| favorite \| on: Implementing Cosine in C from Scratch (2020) In that range, just returning x would be way better. Maybe even perfect actually - if x is less than 10^-16, then the error of x^3/6 is less than the machine precision for x.

adgjlsfhk1 on March 30, 2022 [–]

the error isn't when x is small. it's when sin(x) is small. the problem happens for x near multiples of pi

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact