numpy.polynomial.chebyshev.chebdiv(c1, c2)
[source]
Divide one Chebyshev series by another.
Returns the quotientwithremainder of two Chebyshev series c1
/ c2
. The arguments are sequences of coefficients from lowest order “term” to highest, e.g., [1,2,3] represents the series T_0 + 2*T_1 + 3*T_2
.
Parameters: 


Returns: 

In general, the (polynomial) division of one Cseries by another results in quotient and remainder terms that are not in the Chebyshev polynomial basis set. Thus, to express these results as Cseries, it is typically necessary to “reproject” the results onto said basis set, which typically produces “unintuitive” (but correct) results; see Examples section below.
>>> from numpy.polynomial import chebyshev as C >>> c1 = (1,2,3) >>> c2 = (3,2,1) >>> C.chebdiv(c1,c2) # quotient "intuitive," remainder not (array([3.]), array([8., 4.])) >>> c2 = (0,1,2,3) >>> C.chebdiv(c2,c1) # neither "intuitive" (array([0., 2.]), array([2., 4.]))
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https://docs.scipy.org/doc/numpy1.17.0/reference/generated/numpy.polynomial.chebyshev.chebdiv.html