Fast computation of Fibonacci numbers.
|Latest on Hackage:||0.2.0.1|
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Fast computation of Fibonacci numbers. Use version
0.1.* if you
prefer the Fibonacci sequence to start with one instead of
0.2.* adds correct handling of negative arguments
and changes the implementation to satisfy
fib 0 = 0.
See http://en.wikipedia.org/wiki/Fibonacci_number#Matrix_form for
a description of the employed method.