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 3 - Temp Directory
Determine Whether an array is empty
Sum the Digits of a Number
Matlab Basics II - squares
Matrix Max Finder
Find the sum of the largest two elements in a vector
Simple Vector Addition
Find the index of the lowest number in a matrix
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