Lagrange插值函数lagr1(x0,y0,x)的matlab源程序： function y=lagr1(x0,y0,x) n=length(x0) m=length(x) for i=1:m z=x(i) -Lagrange interpolation function lagr1 (x0, y0, x) Matlab source : lagr1 function y = (x0, y0, x) n = length (x0) m = length (x) for