find the first elements of a column matrix
This would be better as "find the nth element of an array." Also, a column matrix doesn't exist. Perhaps you meant column vector, though the variables in your test cases are row vectors.
Back to basics 3 - Temp Directory
Matrix to column conversion
Let's get back to school, and create multiplication tables
Your favourite city!
Find remainder when x is divided by 3
Calculating selling price
multiply an array by its position number
modulus of a number
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