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.
Project Euler: Problem 1, Multiples of 3 and 5
Project Euler: Problem 10, Sum of Primes
Generate a random matrix A of (1,-1)
Fahrenheit to Celsius converter
Square root of a number
find the mean of all elements in a matrix
Find the last digit
multiply an array by its position number
Determine whether the input is divisible by 3 as well as 5
find a specific element from an matrix
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