- numpy.polynomial.laguerre.lagadd(c1, c2)[source]¶
Add one Laguerre series to another.
Returns the sum of two Laguerre series c1 + c2. The arguments are sequences of coefficients ordered from lowest order term to highest, i.e., [1,2,3] represents the series P_0 + 2*P_1 + 3*P_2.
c1, c2 : array_like
1-D arrays of Laguerre series coefficients ordered from low to high.
out : ndarray
Array representing the Laguerre series of their sum.
Unlike multiplication, division, etc., the sum of two Laguerre series is a Laguerre series (without having to “reproject” the result onto the basis set) so addition, just like that of “standard” polynomials, is simply “component-wise.”
>>> from numpy.polynomial.laguerre import lagadd >>> lagadd([1, 2, 3], [1, 2, 3, 4]) array([ 2., 4., 6., 4.])