polysub(c1, c2)
Returns the difference of two polynomials :None:None:`c1` - :None:None:`c2`. The arguments are sequences of coefficients from lowest order term to highest, i.e., [1,2,3] represents the polynomial 1 + 2*x + 3*x**2
.
1-D arrays of polynomial coefficients ordered from low to high.
Of coefficients representing their difference.
Subtract one polynomial from another.
>>> 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.])See :
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