HP-17BII+ serial

[Didier Lachieze]

(02-01-2016 12:19 PM)tomisan Wrote:  A random number generator is still a challenge. I use this equation for now:

RAN#=L(SEED:FP(9821xG(SEED)+.211327))

On first run (with SEED=0), RAN#=0.211327 as expected, but then the formula is evaluated twice for each run, so in effect I get every second term in the sequence. I can live with that, but wish I could make the Solver behave the way I want.
H
By the way, HP-27S on the other hand, will not solve the above formula if SEED=0. I don't know how the original HP-17BII behaves.

This equation works fine on my 27S 2821A:

RAN=FP(9821xG(RAN)+.211327)

I've removed the # as RAN# is a 27S native function from the Prob menu.

Starting with 0 STO RAN then you get:
first run, .211327
second, .653794
third, .122201
fourth, .347348