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I changed some comments, whoopteedoo

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Kat R. 2022-10-27 08:57:39 -05:00
parent c0639c609a
commit 99f4e3f267
1 changed files with 4 additions and 5 deletions
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math/cos.c
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@ -3,14 +3,13 @@
/* /*
Approximates the cosine of x. Approximates the cosine of x.
Uses a taylor polynomial (roughly) accurate between 0 and Uses a taylor polynomial accurate between 0 and 2*pi to approximate the
2*pi to approximate the cosine. Any values of x outside this cosine. Any values of x outside this range are modulo'd to be within this
range are modulo'd to be within this range (you know, 'cos range (you know, 'cos cosine is cyclic).
cosine is cyclic).
The taylor poly is centered at pi, with a radius of The taylor poly is centered at pi, with a radius of
convergence of no less than pi, making it roughly accurate convergence of no less than pi, making it roughly accurate
between 0 and 2 * pi. The polynomial is up to x^10, which I've between 0 and 2 * pi. The polynomial is up to x^16, which I've
confirmed as being accurate being 0 and 2 * pi. confirmed as being accurate being 0 and 2 * pi.
*/ */
double cos(double x) { double cos(double x) {