function [x,y] = Jacobi(n, A ,b)
↑
Error: Function definition are not supported in this context. Functions can only be created as local or nested functions in code
files.
遇到这个怎末办
你把函数定义在m文件里就行
function [x,y] = Jacobi(n, A ,b)
% balabala
end
然后保存为Jacobi.m文件名