NumPy参考 >例行程序 >Polynomials >Polynomial Package >Legendre Module (numpy.polynomial.legendre) > numpy.polynomial.legendre.legmulx
numpy.polynomial.legendre.
legmulx
(c)[source]¶Multiply a Legendre series by x.
Multiply the Legendre series c by x, where x is the independent variable.
1-D array of Legendre series coefficients ordered from low to high.
Array representing the result of the multiplication.
Notes
The multiplication uses the recursion relationship for Legendre polynomials in the form
Examples
>>> from numpy.polynomial import legendre as L
>>> L.legmulx([1,2,3])
array([ 0.66666667, 2.2, 1.33333333, 1.8]) # may vary