This program is by Paul Dale and is used here by permission.
This program is supplied without representation or warranty of any kind. Paul Dale and The Museum of HP Calculators therefore assume no responsibility and shall have no liability, consequential or otherwise, of any kind arising from the use of this program material or any part thereof.
This is a generalised version of the Fibbonacci series extended to the entire real domain.
The basic function over the integers is Fn = fn-1 + fn-2, where f0 = 0 and f1 = 1.
01 LBL'FIB 02 5 03 SQRT 04 1 05 + 06 2 07 / 08 X<>Y 09 Y^X 10 LASTX 11 PI 12 * 13 RAD 14 COS 15 DEG 16 RCL Y 17 / 18 - 19 5 20 SQRT 21 / 22 END
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