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 14 - Keywords
Make a random, non-repeating vector.
02 - Vector Variables 4
Sum the 'edge' values of a matrix
Area of a triangle
Calculating selling price
modulus of a number
find a specific element from an matrix
Determine whether the input is divisible by 3 as well as 5
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