Function tanh 

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

Evaluate hyperbolic tangent tanh(x)

Mathematical Definition

tanh(x) = sinh(x) / cosh(x) = (e^x - e^(-x)) / (e^x + e^(-x))

Arguments

• arg - Expression to compute tanh of

Returns

Hyperbolic tangent expression

Examples

use mathhook_core::functions::elementary::hyperbolic_eval::tanh;
use mathhook_core::expr;

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