how find last row<>0
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a=[3 4 5 0 3 4 0;4 5 0 0 0 0 0;0 0 0 0 0 0 0]
a =
3 4 5 0 3 4 0
4 5 0 0 0 0 0
0 0 0 0 0 0 0
i want to know the last rows wich element are ==0 ..solution idx=2!
i try this solution :find(sum(a,2)==0)-1 but it's no good because example :the sum 3 3 0 -3 -3 0 =0 but is not correct
2 Comments
Dyuman Joshi
on 12 Aug 2023
Your phrasing is not clear (atleast to me).
a=[3 4 5 0 3 4 0;4 5 0 0 0 0 0;0 0 0 0 0 0 0]
As you said, the output for the above array is 2, what is the logic behind that?
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