Programming exercise (RPL/RPN) - Reciprocal Fibonacci Constant

[Gerson W. Barbosa]

(02-18-2017 09:22 AM)Ángel Martin Wrote:  2. sFIB, partial sum of Fibonacci numbers. ("s" is the SIGMA char). Straight addition of all Fibonacci numbers up to n.

I can't follow MCODE so I don't know how you've implemented that. Anyway, sFIB = Fn+2 - 1.

(02-18-2017 09:22 AM)Ángel Martin Wrote:  3. sIFIB, partial sum of the inverse of Fibonacci numbers, the subject of this thread. For n>=46 this is the PSI constant as Gerson explained. The execution time for n=46 is 2.87 seconds on a normal-speed HP-41.

That's about 4.5 times faster than my RPN version! Thanks for your interest!

Gerson.