What is the Fibonacci calculator?

Answer 1

You input an i, and the calculator will find Fibonacci(i) and Lucas(i) for i into the thousands.

So if you input i=0 to i=12

the output is

Computed values appear here.

fib(0)=0 1 digit

fib(1)=1 1 digit

fib(2)=1 1 digit

fib(3)=2 1 digit

fib(4)=3 1 digit

fib(5)=5 1 digit

fib(6)=8 1 digit

fib(7)=13 2 digits

fib(8)=21 2 digits

fib(9)=34 2 digits

fib(10)=55 2 digits

fib(11)=89 2 digits

fib(12)=144 3 digits

It will do the same thing for Lucas numbers. So say I input i=1 t0 i =10

Please enter a whole number into the 'From i=' box.

luc(1)=1 1 digit

luc(2)=3 1 digit

luc(3)=4 1 digit

luc(4)=7 1 digit

luc(5)=11 2 digits

luc(6)=18 2 digits

luc(7)=29 2 digits

luc(8)=47 2 digits

luc(9)=76 2 digits

luc(10)=123 3 digits

Those are the corresponding Lucas numbers.

I added a link to the calculator. It is a lot of fun to play with.