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
pressure to dB?
Bottles of beer
Set the array elements whose value is 13 to 0
Matlab Basics - Rounding I
Matlab Basics - Logical Tests I
Matlab Basics II - Unit Conversion
Matlab Basics II - Determine if an array has a 3rd dimension
Matlab Basics - y as a function of x
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