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.
Solution Stats
Problem Comments
6 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers447
Suggested Problems
-
Change the sign of even index entries of the reversed vector
660 Solvers
-
Add a row of zeros on top of a matrix
268 Solvers
-
556 Solvers
-
Sum of the Multiplication of Vectors
287 Solvers
-
500 Solvers
More from this Author6
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
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
The problem is unsolvable due to the second test.
isequalwithequalnans
I agree guys! something wrong
please use the function: isequalwithequalnans
;-)
Thanks for the suggestions. I fixed with isequalwithequalnans.