in entry matrix first two raw is exchange with another matrix which is 2*3 replace first two whole raw with that

Question

Pratik Anandpara 2016-12-16

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https://ww2.mathworks.cn/matlabcentral/answers/317107-in-entry-matrix-first-two-raw-is-exchange-with-another-matrix-which-is-2-3-replace-first-two-whole-r

回答： KSSV 2016-12-16

         entry matrix
          1.00          4.00          4.00
          3.00             0          6.00
          5.00          3.00          1.00
          5.00             0          4.00
             0          3.00          6.00
          2.00          1.00          6.00

another matrix C

1 0 9
4 6 9

now first two row of entry matrix is remove with c entry matrix is now seen like this

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Answer 1

KSSV 2016-12-16

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/317107-in-entry-matrix-first-two-raw-is-exchange-with-another-matrix-which-is-2-3-replace-first-two-whole-r#answer_247415

在 MATLAB Online 中打开

em = [1.00          4.00          4.00
          3.00             0          6.00
          5.00          3.00          1.00
          5.00             0          4.00
             0          3.00          6.00
          2.00          1.00          6.00] ;
c = [1 0 9
4 6 9] ;      
iwant = em ;
iwant(1:2,:) = c(1:2,:) ;