WP34S Fibonacci function « Next Oldest | Next Newest »

 ▼ wildpig Unregistered Posts: 134 Threads: 21 Joined: Dec 2007 09-01-2012, 08:59 PM 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 ▼ Paul Dale Unregistered Posts: 3,229 Threads: 42 Joined: Jul 2006 09-01-2012, 09:02 PM Kind of. It calculates the result directly in real and complex modes. In integer mode it uses repeated addition. - Pauli ▼ wildpig Unregistered Posts: 134 Threads: 21 Joined: Dec 2007 09-01-2012, 09:34 PM really? so if i am in integer mode it actually would do addition of terms? interesting... ▼ Walter B Unregistered Posts: 4,587 Threads: 105 Joined: Jul 2005 09-02-2012, 02:25 AM 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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