Changing a Matrix Format!

7 次查看（过去 30 天）

Omar 2016-11-15

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/312343-changing-a-matrix-format

评论： Omar 2016-11-16

Hi everyone, can somebody help me to reshape my matrix from this format Z=[ 0, 0, 0][ 0, 1/16, 0][ 0, 0, 0] to this format Z=[0,0,0;0,1/16,0;0,0,0]???

4 个评论
显示 2更早的评论隐藏 2更早的评论

Jan 2016-11-15

It is still not clear, what Z is. Please post some code, which reproduces it.

Omar 2016-11-15

编辑：Guillaume 2016-11-15

在 MATLAB Online 中打开

okay, Here is my code

clear all;clc;close all;
syms x y
f=x*y*(1-x)*(1-y);    
syms m n pi
a=4*int(int(f*sin(m*pi*x)*sin(n*pi*y),y,0,1),x,0,1);   S=symsum(symsum(a*sin(m*pi*x)*sin(n*pi*y),n,1,2),m,1,2);
xx=linspace(0,1,3)';yy=xx;
[X,Y]=meshgrid(xx,yy);
Z=subs(S,{x,y} ,{X,Y});
figure
surf(X,Y,Z)