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can anyone help me to fix the issue

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jaah navi
jaah navi 2019-3-28
回答： KSSV 2019-3-28
I am a having a matrixA=[1 2 3 4 5 6 7 8;
9 10 11 12 13 14 15 16;
17 18 19 20 21 22 23 24]
I want to have a matrix such that it should contain the first three elements present in each row as follows:
B=[1 2 3;
9 10 11;
17 18 19]
Could anyone please help me on this.

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KSSV
KSSV 2019-3-28
B = A(1:3,1:3) ;

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