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.
Number of toolboxes?
Try 1.5.4: Celsius to Fahrenheit
04 - Scalar Equations 2
05 - Vector Equations 1
Finding perimeter of a rectangle
Matlab Basics - Pick out parts of a vector
Matlab Basics II - Intervals
Matlab Basics II - Count rows in a matrix
Matlab Basics II - Log and natural log
Matlab Basics II - Extract last 3 elements of a vector
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