comnum.qfunc

comnum.qfunc(x)

The Gaussian tail function Q(x) = erfc(x/√2)/2.

Parameters:

x (float | array_like) – the argument.

Returns:

Q(x).

Return type:

float | numpy.ndarray

Raises:

ValueError – for values that are not real numbers.

Examples

>>> import comnum
>>> round(comnum.qfunc(0.0), 6), round(comnum.qfunc(3.0), 6)
(0.5, 0.00135)