Back to basics 25 - Valid variable names
middleAsColumn: Return all but first and last element as a column vector
Is this triangle right-angled?
Sum the 'edge' values of a matrix
Basic commands - amount of inputs
Sum of unique multiples of 3 and 5
Day counter function
Check if there are white spaces in the input string
ASCII sum of phrases
basic matrix operations: rotate and find sum of diagonal elements of the resultant matrix
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