creating a new matrix from an obtained matix?

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metin yilmaz
metin yilmaz 2020-8-15
评论： Alan Stevens 2020-8-15
Hello. If I already have a matrix [1 2 3; 4 5 6; 7 8 9], how can I add 0 to its every row by a command?
Thank you.

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回答（2 个）

Alan Stevens
Alan Stevens 2020-8-15
Something like:
M = [1 2 3; 4 5 6; 7 8 9];
Mplus = [M zeros(3,1)]
Mplus =
1 2 3 0
4 5 6 0
7 8 9 0
Alwys assuming you want the zeros as the last column.
metin yilmaz
metin yilmaz 2020-8-15
编辑：metin yilmaz 2020-8-15
Thank you Alan Stevens but what If I wanted 2s, or twos, as the first column instead of 0s, or zeros, as the last one?
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metin yilmaz
metin yilmaz 2020-8-15
Would you please explain how to add a new column as the third one inside your matrix, sliding your previous 3th, and 4th and 5th to the right? That is you will have a new matrix having one more column.
Thank you.

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