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.
Is the Point in a Circle?
Whether the input is vector?
Generate a vector like 1,2,2,3,3,3,4,4,4,4
Add two numbers
Matlab Basics II - Velocity of a particle
Matlab Basics II - Free Fall
Matlab Basics II - Max & Index of Max
Matlab Basics II - Determine if an array has a 3rd dimension
Matlab Basics - Absolute Value
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