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
Determine if a Given Number is a Triangle Number
What number has this problem?
Evaluating a polynomial
Matlab Basics - Rounding III
Matlab Basics II - Log and natural log
Matlab Basics II - Intervals
Finding an element in a vector
Matlab Basics II - Velocity of a particle
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