1 | initial version |
Thanks, Eric_G. I am interested to help out. Is there a page with Sage volunteering process? I will sign up. I have computer science degrees but new to math (but seriously interested to learn).
Correct definition:
def legendre_function(l, m, f): return ((-1)^m * (1 - x^2)^(m/2) * diff(legendre_P(l, x), x, m)).subs(x = f) sage: legendre_function(2, 2, x) -3*x^2 + 3 sage: legendre_function(2, 2, cos(x)) -3*cos(x)^2 + 3