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keisanHigh-precision calculations for everyday life and work

Fibonacci Numbers

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Calculates the Fibonacci sequence Fn.
Ordinal n
n=1,2,3,...
Fibonacci Numbers Fn 
\(\normalsize Fibonacci\ number\ F_n\\ (1)\ F_n=F_{n-1}+F_{n-2},\hspace{20px} F_1=1,\ F_2=1\\ (2)\ F_n={\large\frac{(1+\sqrt5)^n-(1-\sqrt5)^n}{2^n\sqrt5}}\\\)

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