polynomial.laguerre.
lagadd
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.
P_0 + 2*P_1 + 3*P_2
1-D arrays of Laguerre series coefficients ordered from low to high.
Array representing the Laguerre series of their sum.
See also
lagsub
lagmulx
lagmul
lagdiv
lagpow
Notes
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.”
Examples
>>> from numpy.polynomial.laguerre import lagadd >>> lagadd([1, 2, 3], [1, 2, 3, 4]) array([2., 4., 6., 4.])