komm.qfunc

Computes the Gaussian Q-function. It is given by $$ \mathrm{Q}(x) = \frac{1}{\sqrt{2\pi}} \int_x^\infty \mathrm{e}^{-u^2/2} \, \mathrm{d}u. $$

Parameters:

• x (float | ArrayND[float]) –

  The input to the function. May be any float or array of floats.

Returns:

• y (SameAsInput) –

  The value $y = \mathrm{Q}(x)$.

Examples:

>>> komm.qfunc(0.0)
0.5

>>> komm.qfunc([-1.0, 0.0, 1.0])
array([0.84134475, 0.5       , 0.15865525])