Problem 2350. What is Sum Of all elements of Matrix
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
Show
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.
Solution Comments
Show commentsProblem Recent Solvers413
Suggested Problems
-
648 Solvers
-
Back to basics 25 - Valid variable names
324 Solvers
-
Is this triangle right-angled?
5810 Solvers
-
791 Solvers
-
Cumulative product of a vector
279 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!