scipy.special.erfi#

scipy.special.erfi(z, out=None) = <ufunc 'erfi'>#

Imaginary error function, -i erf(i z).

Parameters:

zarray_like: Real or complex valued argument
outndarray, optional: Optional output array for the function results

Returns:

scalar or ndarray: Values of the imaginary error function

See also

erf, erfc, erfcx, dawsn, wofz

Notes

Added in version 0.12.0.

References

[1]

Steven G. Johnson, Faddeeva W function implementation. http://ab-initio.mit.edu/Faddeeva

Examples

>>> import numpy as np
>>> from scipy import special
>>> import matplotlib.pyplot as plt
>>> x = np.linspace(-3, 3)
>>> plt.plot(x, special.erfi(x))
>>> plt.xlabel('$x$')
>>> plt.ylabel('$erfi(x)$')
>>> plt.show()