Derivative of legendreP function

8 visualizaciones (últimos 30 días)
Xin
Xin el 22 de Feb. de 2018
Respondida: Star Strider el 22 de Feb. de 2018
Hello. I am wondering how could one differentiate the legendre polynomial, e.g. like legendreP(5,x) can be expressed as (63*x^5)/8 - (35*x^3)/4 + (15*x)/8 and how to let matlab automatically give value of the derivative of it numerically. Is there a function that deals with this type of differentiation?
Thanks a lot

Respuestas (1)

Star Strider
Star Strider el 22 de Feb. de 2018
The best way to compute the derivative of a vector (that I assume you are computing) is to use the gradient (link) function. The advantage is that it produces a result vector the same length as the argument vector. See the documentation for the details of the computations it uses and its other abilities.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by