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.
Select every other element of a vector
Make one big string out of two smaller strings
Arrange vector in ascending order
Test Problem; Create a 5x5 array containing all ones
Replace 0 indices in array with 1's
Simple String Concatenation
Find the index of the lowest number in a matrix
Matrix Ax=B problem
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