Check if a inputted variable is a number or a string, given a string input (i.e. '1' is 1 and thus a number, 'a' is a string).
Additional test cases have been added.
Back to basics 4 - Search Path
Determine Whether an array is empty
Find the product of a Vector
Convert yards to feet
Matrix Generation from Vector Multiplication
Sum two matrices
Vector Element Multiplication
Find the mean of two vectors
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