From a usability point of view, returning a string to indicate nothing found is probably the worst. an empty value or 0 would be much better.
Guillaume, I would say that that depends upon the intended 'audience' for the output.
Reverse the vector
Rounding off numbers to n decimals
Wind Chill Computation
Calculate volume of box
Sum the squares of numbers from 1 to n
Matlab Basics - Create a row vector
Matlab Basics II - 3 Dimensional Arrays
Matlab Basics - Logical Tests I
Matlab Basics - Pick out parts of a vector
Matlab Basics II - Intervals
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