To remove in the future –– numpy.lib.scimath
Wrapper functions to more user-friendly calling of certain math functions whose output data-type is different than the input data-type in certain domains of the input.
For example, for functions like :None:None:`log` with branch cuts, the versions in this module provide the mathematically valid answers in the complex plane:
>>> import math >>> np.emath.log(-math.exp(1)) == (1+1j*math.pi) True
Similarly, :None:None:`sqrt`, other base logarithms, :None:None:`power` and trig functions are correctly handled. See their respective docstrings for specific examples.
.. autosummary::
:toctree:generated/
sqrt
log
log2
logn
log10
power
arccos
arcsin
arctanh
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