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 10 - Max Float
Solve the set of simultaneous linear equations
Compare two input matrices
Integer or Float?
Determine whether the input is divisible by 3 as well as 5
find the mean of all elements in a matrix
Find the last digit
multiply an array by its position number
modulus of a number
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