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
How to subtract?
What number has this problem?
Count decimal digits of a number
Sum the squares of numbers from 1 to n
Matlab Basics II - Velocity of a particle
Matlab Basics II - Extract last 3 elements of a vector
Matlab Basics - Absolute Value
Matlab Basics II - squares
Matlab Basics II - Minimum
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