Tag Archives: python

Benchmarking the non-iterative, closed-form solution for Fibonacci numbers

Paul Hankin came up with a formula to calculate a Fibonacci numbers without recursively (or iteratively) generating prior ones. Don’t get too excited: his non-iterative, closed-form solution in O(nĀ²). That means it’s slow when n is big. I was curious how well this would do in Perl. It’s very fast in Python and dog slow in Perl.

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