# Fibonacci function (chart) Calculator

## Calculates a table of the Fibonacci function Fν and draws the chart.

 initial value ν real number [ increment repetition ]
 $\normal Fibonacci\ number\qquad F_\nu\\[10](1)\ F_\nu={\large\frac{1}{\sqrt5}}\left({\large(\frac{1+\sqrt5}{2})}^\nu-{\large(\frac{2}{1+\sqrt5})}^\nu cos(\nu\pi)\right)\\[5]\hspace{180}\nu:real\ number\\$
Fibonacci function (chart)
 [1-1] /1 Disp-Num5103050100200
[1]  2017/09/20 09:45   Male / 50 years old level / An engineer / Very /
Purpose of use
Actually I was not aware that, like Gamma function is ''analytic continuation'' for factorial, the same ''logics'' may be applied to Fibonacci numbers, using identity (-1)^n = cos(n*pi()), which I have known for thirtyfive years, but ...

Sending completion

To improve this 'Fibonacci function (chart) Calculator', please fill in questionnaire.
Male or Female ?
Male Female
Age
Under 20 years old 20 years old level 30 years old level
40 years old level 50 years old level 60 years old level or over
Occupation
Elementary school/ Junior high-school student
High-school/ University/ Grad student A homemaker An office worker / A public employee
Self-employed people An engineer A teacher / A researcher
A retired person Others
Useful?
Very Useful A little Not at All
Purpose of use?