How to get three sub matrices from a matrix of any order? How we will do for general matrix? I have given an example of order 5.

2 次查看（过去 30 天）

显示更早的评论

Farooq Aamir 2018-10-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/426471-how-to-get-three-sub-matrices-from-a-matrix-of-any-order-how-we-will-do-for-general-matrix-i-have

评论： Walter Roberson 2018-10-28

采纳的回答： madhan ravi

在 MATLAB Online 中打开

For example:

A=  [1    4    5    7    8;
  2    6    9    10;
  6    3    1    1;
  9    1   3    5;
  10   1    5   4];

Ist sub matrix is A11=[1 4 5; 4 2 6 ; 5 6 3]; order should be 3by3,

2nd sub matrix is B11=[7 9 1; 8 10 1]; order should be 2by3,

3rd sub matrix is C11=[3 5; 5 4]; order should be 2by2.

3 个评论
显示 1更早的评论隐藏 1更早的评论

Farooq Aamir 2018-10-28

@ Walter Roberson, A has some special structure so that's why I divide A into this way. (e.g Hamiltonian matrix)

Walter Roberson 2018-10-28

If it had been order 7 then which parts would you need?

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

madhan ravi 2018-10-28

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/426471-how-to-get-three-sub-matrices-from-a-matrix-of-any-order-how-we-will-do-for-general-matrix-i-have#answer_343791

在 MATLAB Online 中打开

A=  [1    4    5    7    8;
     4    2    6    9    10;
     5    6    3    1    1;
     7    9    1   3    5;
     8    10   1    5   4];
A11=a(1:3,1:3)
B11=a(1:3,end-1:end)
C11=a(end-1:end, end-1:end)

2 个评论
显示无隐藏无

Farooq Aamir 2018-10-28

@ Madhan Ravi bundle of thanks....

madhan ravi 2018-10-28

Anytime :)

请先登录，再进行评论。

类别

MATLAB Language Fundamentals Matrices and Arrays Creating and Concatenating Matrices

在 Help Center 和 File Exchange 中查找有关 Creating and Concatenating Matrices 的更多信息

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by