Given the vector A, return B in which all numbers in A are doubling. So for:
A = [ 1 5 8 ]
B = [ 1 1 5 5 8 8 ]
Reverse the Words (not letters) of a String
Swap the input arguments
Return the Fibonacci Sequence
Calculate the area of a triangle between three points
Create a Matrix of Zeros
Solving a quadratic equation
Divisors of an integer
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