if you're going to post trivial problems that have already been posted before, at least use a proper test suite.
and this one does not even require a solution
Most nonzero elements in row
Find the largest value in the 3D matrix
02 - Vector Variables 2
Perfect Square or not
Vector Magnitude Calculator
Matlab Basics II - Unit Conversion
Matlab Basics II - 3 Dimensional Arrays
Matlab Basics II - Minimum
Matlab Basics II - Extract last 3 elements of a vector
Replace every 3rd element in a vector with 4
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