legfun.m

来自「求解量子力学的薛定谔方程」· M 代码 · 共 10 行

function f=legfun(N,M,x);
%> CALL: f = legfun(N,M,x)
%> Calculates the Legendre functions P(M,L) for L = M,...,N;
%> NORMALIZED to an L2 norm = 1 on the interval [-1,1].
%> Input: N > M integers, x row vector.
%> Output: matrix with N-M+1 rows of length = length(x);
%> This program is just to get this matrix quickly, use the 
%> standard Legendre routines of MATLAB for accuracy.
%>
%>