numpy.polynomial.legendre.legadd()

numpy.polynomial.legendre.legadd(c1, c2) [source]

Add one Legendre series to another.

Returns the sum of two Legendre 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.

Parameters:

Parameters:	c1, c2 : array_like 1-D arrays of Legendre series coefficients ordered from low to high.
Returns:	out : ndarray Array representing the Legendre series of their sum.

c1, c2 : array_like

1-D arrays of Legendre series coefficients ordered from low to high.

Returns:

out : ndarray

Array representing the Legendre series of their sum.

Notes

Unlike multiplication, division, etc., the sum of two Legendre series is a Legendre 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 import legendre as L
>>> c1 = (1,2,3)
>>> c2 = (3,2,1)
>>> L.legadd(c1,c2)
array([ 4.,  4.,  4.])

Links:

https://docs.scipy.org/doc/numpy-1.11.0/reference/generated/numpy.polynomial.legendre.legadd.html

doc_NumPy

2025-01-10 15:47:30

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