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.
Get the length of a given vector
Magic is simple (for beginners)
Generate a random matrix A of (1,-1)
Length of the hypotenuse
Product of Array
Determine whether the input is divisible by 3 as well as 5
Find the last digit
Find remainder when x is divided by 3
find a specific element from an matrix
Calculating selling price
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