I just published a short, introduction level article,

Speeding up factorial computation by changing the order of multiplications.

This is a story about a small, seemingly innocent code change that speeds up a very simple computation. It is pretty magical and serves as an example of how things are not always what they seem.

https://medium.com/concerning-pharo/speeding-up-factorial-computation-by-changing-the-order-of-multiplications-f4da3a5576da#.l3nrk9oax

Enjoy,

Sven

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Sven Van Caekenberghe
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