MATLAB曲面绘图怎么画不出来clear;clc;x=-5:1:5;y=-5:1:5;[X,Y]=meshgrid(x,y);Z=1/((X+1)(X+1)+(Y+1)(Y+1))+1/((X-1)(X-1)+(Y-1)(Y-1));%Z=1/((X+1)^2+(Y+1)^2+1)-1/((X-1)^2+(Y-1)^2+1);%plot3(X,Y,Z);mesh(X,Y,Z);title('grid');我写的代

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MATLAB曲面绘图怎么画不出来clear;clc;x=-5:1:5;y=-5:1:5;[X,Y]=meshgrid(x,y);Z=1/((X+1)*(X+1)+(Y+1)*(Y+1))+1/((X-1)*(X-1)+(Y-1)*(Y-1));%Z=1/((X+1)^2+(Y+1)^2+1)-1/((X-1)^2+(Y-1)^2+1);%plot3(X,Y,Z);mesh(X,Y,Z);title('grid');我写的代
MATLAB曲面绘图怎么画不出来
clear;
clc;
x=-5:1:5;
y=-5:1:5;
[X,Y]=meshgrid(x,y);
Z=1/((X+1)*(X+1)+(Y+1)*(Y+1))+1/((X-1)*(X-1)+(Y-1)*(Y-1));
%Z=1/((X+1)^2+(Y+1)^2+1)-1/((X-1)^2+(Y-1)^2+1);
%plot3(X,Y,Z);
mesh(X,Y,Z);
title('grid');
我写的代码如上,总是提示Z的表达式那一行有错.