将两个矩阵首尾相接

- June 25, 2023 at 2:25 pm
  
  mawenzhuang
  Subscriber
  
  请问孙老师，我有两个矩阵一个是41*2 另个是100*2；如何将这两个矩阵构成一个新矩阵且首位相接组成一个141*2的矩阵
- June 25, 2023 at 2:25 pm
  
  mawenzhuang
  Subscriber
  
  首尾相接
- June 26, 2023 at 7:19 pm
  
  Guilin Sun
  Ansys Employee
  
  那你应该先定义一个141*2的矩阵，最简单的方法是将这两个矩阵用新的矩阵代替，直接赋值。如果不能代替，那就要分别赋值。假设
  A1是41*2 A2是100*2，A3是141*2的矩阵，可以
  A3(1:41,:)=A1(:,:);
  A3(42:141,:)=A2(:,:)
  : 代表该维所有元素。

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