Function number_diff::asin

pub fn asin(func: Function) -> Function

Creates a Function equal to the arcsine of the passed Function

i.e f(x) ⟹ asin(f(x))

Example:

    let x = function::default();
    let asin_of_x = asin(x);
    assert_eq!(asin_of_x.call(1.), PI/2.);