Given the matrix x, return the sum of all elements of matrix.
Example:
Input x = [ 1 2 0 0 0
0 6 9 3 3 ]
Output y is 24. Input x = [ 1 NaN 0 0 0
0 6 9 3 3 ]
Output y is NaN.
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6 Comments
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3 older comments
Guillaume
on 8 Sep 2014
isequal(NaN, NaN) always return false. By definition Nans are not equal to each other. If you want test that a result is NaN, either use isnan, or use isequaln
Grzegorz Knor
on 8 Sep 2014
The problem is unsolvable due to the second test.
Zikobrelli
on 8 Sep 2014
isequalwithequalnans
Abdullah Caliskan
on 8 Sep 2014
I agree guys! something wrong
J.R.! Menzinger
on 8 Sep 2014
please use the function: isequalwithequalnans
;-)
Ned Gulley
on 9 Sep 2014
Thanks for the suggestions. I fixed with isequalwithequalnans.
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