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.
Word Counting and Indexing
Numbers with prime factors 2, 3 and 5.
Compute a dot product of two vectors x and y
Colon operator of two vectors
Max of a Vector
Remove TeX from string
Get input and output variable names
Split up vector or matrix delimited by NaNs
Test within tolerance
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