Return true if the input is a Smith number in base ten. Otherwise, return false. Read about Smith numbers at http://en.wikipedia.org/wiki/Smith_number.
A Smith number must be positive and have more than one factor.
Distance walked 3D
Are you in or are you out?
"Low : High - Low : High - Turn around " -- Create a subindices vector
Magic is simple (for beginners)
Remove TeX from string
Split up vector or matrix delimited by NaNs
Test within tolerance
Get input and output variable names
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