如何创建Matlab 201X 201矩阵 [英] How do I create a matlab 201X 201 matrix

问题描述

如何创建一个201x 201矩阵，所有奇数行交替为3,1,3，偶数行交替为1,2,1,2.我尝试使用随机数生成器，for循环，并正在考虑使用find命令.我正在尝试生成矩阵，但是收到了错误消息.

How do I create a 201x 201 matrix with all odd rows alternating as 3,1,3 and the even rows alternating as 1,2,1,2. I tried using a random number generator, a for loop, and am thinking about using the find command. I am trying to generate a matrix, but I have recieved error messages.

推荐答案

如果我正确理解您的意思，那么Kronecker产品(kron)是实现此目的的最简单方法:

If I understand what you mean correctly, then the Kronecker product (kron) is the simplest way to achieve this:

A = kron( ones(101), [3 1; 1 2]);
A = A(1:201, 1:201); 

第一个命令根据您的要求创建一个202x202矩阵，第二个命令将第1行和第1列切掉以符合201x201尺寸规格.

The first command creates a 202x202 matrix according to your requirements, and the second command chops 1 row and 1 column off to conform to the 201x201 size specification.

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