Function nikisas::cos

pub fn cos(x: f32) -> f32

Computes the cosine of a number in radians.

Notes

The input domain is limited to approximately [-2.1e+9, 2.1e+9] due to implementation details (see sin).

Examples

use nikisas::{cos, consts::PI};
assert_eq!(cos(PI), -1.0);

Implementations details

It is simply computed as sin(x + pi/2) using sin routine.