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
Solve the set of simultaneous linear equations
Is this triangle right-angled?
Square root of a number
Replace every 3rd element in a vector with 4
Matlab Basics - Set unwanted parts of a vector to zero
Matlab Basics II - Operations and Matrix Dimensions
Matlab Basics II - Velocity of a particle
Matlab Basics - Rounding I
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