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.
2 b | ~ 2 b
Return the first and last character of a string
Implement simple rotation cypher
Sum the Digits of a Number
Write a code that will follow the equation y = x * (x + x) * x.
Matrix element wise multiplication
Matrix Ax=B problem
Matrix Max Finder
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