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
Back to basics 20 - singleton dimensions
Getting logical indexes
Who has power to do everything in this world?
Find Out sum of principal diagonal element of given matrix
Matlab Basics II - Minimum
Matlab Basics II - Operations and Matrix Dimensions
Matlab Basics - Pick out parts of a vector
Matlab Basics - Absolute Value
Matlab Basics II - Intervals
Matlab Basics - y as a function of x
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