Intersection of row and column

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Anca Toma
Anca Toma on 23 May 2022
Commented: Anca Toma on 23 May 2022
Hi, I am triyng to make a new with the elements extracted from the intresection of the rows 4,5,6 with the columns 1,3,6 from this matrix.

Answers (2)

Prakash S R
Prakash S R on 23 May 2022
I assume you are trying to form a new 3x3 matrix G from rows and columns of H. You can do this by specifying the indices of interest:
G = H([4,5,6], [1,3,6])

Image Analyst
Image Analyst on 23 May 2022
H = [1 0 0 -1 0 0;...
0 1 0 0 -1 0;...
0 0 1 0 0 -1;...
2 0 1 2 0 1;...
1 1 1 1 1 1;...
-1 2 -2 -1 2 -2];
M = H([4,5,6], [1,3,6])
M = 3×3
2 1 1 1 1 1 -1 -2 -2

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