If your purpose is to compare the efficiency, I recommend you to use tic/toc or timeit instead of clock/etime. The clock function measures the operating system time which is less reliable as compared to tic/toc measurements.
Four quadrant inverse tangent function.
Back to basics 9 - Indexed References
Back to basics 10 - Max Float
Back to basics 14 - Keywords
Magic is simple (for beginners)
Battleship_000 : (TM) Classic Game - Easy computer bot
USC Fall 2012 ACM : Find Largest Water Concentration
Mastermind IV: Optimal Solver - max of 5 guesses
Binpack Contest: Retro
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