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.
Return unique values without sorting
Duplicate each element of a vector.
Determine if input is a perfect number
Is it an Armstrong number?
Converting binary to decimals
Remove TeX from string
Test within tolerance
Get input and output variable names
Split up vector or matrix delimited by NaNs
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