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.
Prime factor digits
Sort numbers by outside digits
arrangement of symbols
Detect a number and replace with two NaN's
Molecule Atomic Wt (CHONS) Molecules
Loading/Expanding a ZIP file from File Exchange
PONG 003: 3-Ball Rectangle, Interactive Download
Usage of java.math : Add, Multiply, Pow
Factorial: Unlimited Size : java.math
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