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numpy.polynomial.polynomial.polysub(c1, c2)
[source] -
Subtract one polynomial from another.
Returns the difference of two polynomials
c1
-c2
. The arguments are sequences of coefficients from lowest order term to highest, i.e., [1,2,3] represents the polynomial1 + 2*x + 3*x**2
.Parameters: c1, c2 : array_like
1-D arrays of polynomial coefficients ordered from low to high.
Returns: out : ndarray
Of coefficients representing their difference.
Examples
>>> from numpy.polynomial import polynomial as P >>> c1 = (1,2,3) >>> c2 = (3,2,1) >>> P.polysub(c1,c2) array([-2., 0., 2.]) >>> P.polysub(c2,c1) # -P.polysub(c1,c2) array([ 2., 0., -2.])
numpy.polynomial.polynomial.polysub()
2017-01-10 18:17:48
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