At 06:00 07.07.2006, padawan12 wrote: >I found a closed ofrm of fib which goes > >fib(n) = (phi^n - (1-phi)^n)/sqrt(5) >but when I patch it up I get an error. > >It seems to be with the second numerator >term, the Pd [pow] doesn't like non integer >negatives. Anyone know how I get around >this? use [expr]. sven.