Atanherf

rfbp.atanherf.atanherf(x)

Compute atanh(erf) for general values of x

Parameters:x (float) – Input variable Returns:atanh(erf(x)) – atanh(erf(x)) for any value of x Return type:float

Example

>>> x = 3.14
>>> atanherf(x)
  6.157408006068702

>>> from scipy.special import erf
>>> import numpy as np
>>> np.arctanh(erf(x))
  6.157408006066962

>>> x = 100
>>> atanherf(x)
  5002.9353661516125
>>> np.arctanh(erf(x))
  inf

Notes

Note

We encourage to use this function since it is faster than a possible pure-Python counterpart and it implements a series of computational tricks to solve possible numerical instability or precision losses.