`numpy.polynomial.laguerre:lagsub`

source: /numpy/polynomial/laguerre.py :347

Signature

def lagsub ( c1 , c2 )

Summary

Subtract one Laguerre series from another.

Extended Summary

Returns the difference of two Laguerre series c1 - c2. The sequences of coefficients are from lowest order term to highest, i.e., [1,2,3] represents the series P_0 + 2*P_1 + 3*P_2.

Parameters

c1, c2 : array_like: 1-D arrays of Laguerre series coefficients ordered from low to high.

Returns

out : ndarray: Of Laguerre series coefficients representing their difference.

Notes

Unlike multiplication, division, etc., the difference of two Laguerre series is a Laguerre series (without having to "reproject" the result onto the basis set) so subtraction, just like that of "standard" polynomials, is simply "component-wise."

Examples

from numpy.polynomial.laguerre import lagsub

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lagsub([1, 2, 3, 4], [1, 2, 3])

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Aliases

numpy.polynomial.Laguerre._sub
numpy.polynomial.laguerre.lagsub