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.
01 - Scalar variables
Replace values under a limit
Matrix of almost all zeros, except for main diagonal
Find the area of a triangle
Simple Vector Addition
Vector indexing: lower than mean
Matrix element wise multiplication
Find the mean of two vectors
Automatic String Editing
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