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 Solvers446
Suggested Problems
-
5973 Solvers
-
Get the length of a given vector
13130 Solvers
-
Duplicate each element of a vector.
636 Solvers
-
318 Solvers
-
Switch matrix to a column vector
374 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.