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.
Alphabetize by last name
Area of a triangle
Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.
Test within tolerance
Get input and output variable names
Remove TeX from string
Split up vector or matrix delimited by NaNs
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