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.
radius of a spherical planet
How many trades represent all the profit?
Free passes for everyone!
Determine the square root
Get input and output variable names
Test within tolerance
Remove TeX from string
Split up vector or matrix delimited by NaNs
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