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.
Filter AC, pass DC
07 - Common functions and indexing 1
Are you in XY plane?
UICBioE240 problem 1.15
find the mean of all elements in a matrix
Determine whether the input is divisible by 3 as well as 5
Find remainder when x is divided by 3
modulus of a number
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