Function arccos 

pub fn arccos(arg: &Expression) -> Expression

Evaluate arccosine function

Mathematical Definition

arccos(x) = cos⁻¹(x), domain: [-1, 1], range: [0, π]

Arguments

• arg - Expression to compute arccosine of

Returns

Arccosine expression

Examples

use mathhook_core::functions::elementary::trigonometric::arccos;
use mathhook_core::expr;

let result = arccos(&expr!(1));
assert_eq!(result, expr!(0));