numpy.polysub(a1, a2)
[source]
Difference (subtraction) of two polynomials.
Given two polynomials a1
and a2
, returns a1 - a2
. a1
and a2
can be either array_like sequences of the polynomials’ coefficients (including coefficients equal to zero), or poly1d
objects.
Parameters: |
a1, a2 : array_like or poly1d Minuend and subtrahend polynomials, respectively. |
---|---|
Returns: |
out : ndarray or poly1d Array or |
>>> np.polysub([2, 10, -2], [3, 10, -4]) array([-1, 0, 2])
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https://docs.scipy.org/doc/numpy-1.12.0/reference/generated/numpy.polysub.html