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class method
Math.erfc
Math.erfc(x) → Float
math.c
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static VALUE
math_erfc(VALUE unused_obj, VALUE x)
{
return DBL2NUM(erfc(Get_Double(x)));
}
Calculates the complementary error function of x.
Domain: (-INFINITY, INFINITY)
Codomain: (0, 2)
Example
Math.erfc(0) #=> 1.0