In view of the recent spate of trivial problems with no test suite to speak of, thanks for making the effort of providing a proper test suite and a slightly less trivial problem.
Sum the elements in either diagonal of a square matrix
Check if equal
Sum of the Matrix Elements
Area of a circle
Matlab Basics II - Create a vector with a repeated entry
Matlab Basics - y as a function of x
Matlab Basics - Switching Assignments
Matlab Basics - Pick out parts of a vector
Matlab Basics II - Unit Conversion
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