WP34S Fibonacci function Message #1 Posted by wildpig on 1 Sept 2012, 8:59 p.m.
I am guessing that the one use in Wp34S use the equation with golden ratio constant to directly calc the fib term, and not by adding terms? fib(20) and fib(1700) takes same amount of time on wp34s
Re: WP34S Fibonacci function Message #2 Posted by Paul Dale on 1 Sept 2012, 9:02 p.m., in response to message #1 by wildpig
Kind of. It calculates the result directly in real and complex modes. In integer mode it uses repeated addition.
- Pauli
Re: WP34S Fibonacci function Message #3 Posted by wildpig on 1 Sept 2012, 9:34 p.m., in response to message #2 by Paul Dale
really? so if i am in integer mode it actually would do addition of terms? interesting...
Re: WP34S Fibonacci function Message #4 Posted by Walter B on 2 Sept 2012, 2:25 a.m., in response to message #3 by wildpig
But not too exciting: FIB(93) is the limit for UNSIGNed integers, then it's going to overflow. E.g. FIB(100) simply returns zero with flag B set.
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