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class method

Math.erf

Math.erf(x) → Float

static VALUE
math_erf(VALUE unused_obj, VALUE x)
{
    return DBL2NUM(erf(Get_Double(x)));
}

Calculates the error function of x.

Domain: (-INFINITY, INFINITY)

Codomain: (-1, 1)

Example

Math.erf(0) #=> 0.0

See also .cosh .erfc .cos .exp also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0