Add up all the elements in a NxM matrix where N signifies the number of the rows and M signifies the number of the columns.
Example :
x= [ 8 1 6]
The total sum of the elements will be 8+1+6= 15.
improve test suit
I did this simply because the test-suity is so unbelievably bad.
Please fix it so this solution is no langer valid.