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

New in version 0.12.0.

References

1

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

Examples

>>> 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()