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.
03 - Matrix Variables 3
Find out value of sine given by degree.
Compute LOG(1+X) in natural log
Determine whether the input is divisible by 3 as well as 5
Find the last digit
modulus of a number
find a specific element from an matrix
Find remainder when x is divided by 3
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