pub fn erf(arg: &Expression) -> ExpressionExpand description
Error function erf(x)
§Mathematical Definition
erf(x) = (2/√π) ∫₀ˣ e^(-t²) dt
§Arguments
arg- Expression to compute error function of
§Returns
Error function expression
§Examples
use mathhook_core::functions::special::error_functions::erf;
use mathhook_core::expr;
let result = erf(&expr!(0));
assert_eq!(result, expr!(0));