numpy.polynomial.laguerre.lagmul(c1, c2)
[source]
Multiply one Laguerre series by another.
Returns the product of two Laguerre series c1
* c2
. The arguments are sequences of coefficients, from lowest order “term” to highest, e.g., [1,2,3] represents the series P_0 + 2*P_1 + 3*P_2
.
Parameters: 


Returns: 

In general, the (polynomial) product of two Cseries results in terms that are not in the Laguerre polynomial basis set. Thus, to express the product as a Laguerre series, it is necessary to “reproject” the product onto said basis set, which may produce “unintuitive” (but correct) results; see Examples section below.
>>> from numpy.polynomial.laguerre import lagmul >>> lagmul([1, 2, 3], [0, 1, 2]) array([ 8., 13., 38., 51., 36.])
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https://docs.scipy.org/doc/numpy1.17.0/reference/generated/numpy.polynomial.laguerre.lagmul.html