mathlab::functions::num

Function asec

Source 
pub fn asec(x: f64) -> f64
Expand description

§asec(x)

Trigonometric Function

The asec function computes the inverse secant of a number (in radians), returning the angle whose secant is equal to the input value.

§Examples

use mathlab::math::{asec, INF_F64 as inf};
assert_eq!(asec(-inf), 1.5707963268);
assert_eq!(asec(-999999999999.0), 1.5707963268);
assert_eq!(asec(-1.0), 3.1415926536);
assert_eq!(asec(1.0), 0.0);
assert_eq!(asec(1.1547005384), 0.5235987756);
assert_eq!(asec(1.4142135623), 0.7853981634);
assert_eq!(asec(2.0), 1.0471975512);
assert_eq!(asec(999999999999.0), 1.5707963268);
assert_eq!(asec(inf), 1.5707963268);

End Fun Doc