command for inverse ERF function in python [closed]

Question

What is the command to calculate Inverse Error function (erf) of a function in a python and which module is needed to import?

Answer 1

For the inverse error function, scipy.special has erfinv:

http://docs.scipy.org/doc/scipy/reference/generated/scipy.special.erfinv.html#scipy.special.erfinv

In [4]: from scipy.special import erfinv

In [5]: erfinv(1)
Out[5]: inf

In [6]: erfinv(0.4)
Out[6]: 0.37080715859355784