HP-35 origin
12-10-2018, 02:41 AM (This post was last modified: 12-10-2018 03:09 AM by Gerson W. Barbosa.)
Post: #19
 Gerson W. Barbosa Senior Member Posts: 1,603 Joined: Dec 2013
RE: HP-35 origin
(06-20-2018 07:31 PM)brickviking Wrote:  I parsed that as the following procedure would indicate:
$$(((\pi!)!)!)$$, therefore would have approximately been:
$$\pi! = 7.18808272898$$
$$7.18808272898! = 7380.55555766$$
$$7380.55555766! = OVERFLOW$$(at least for my 50G)

That’s a job for super-wp34s:

pi ! ! 1 + LNgamma 10 LN / IP RCL L FP 10^x —> 4.41316713166

x<>y —> 25345

=> ((pi!)!)! = 4.41316713166*10^25345

or, approximately, 490347/111110*10^25345

Notice that (pi!)! ~ 66425/9 is much nicer.

PS: LOGGAMMA on the HP 50g gives a less accurate mantissa: 4.4131694182
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 Messages In This Thread HP-35 origin - hibiki - 06-16-2018, 10:58 PM RE: HP-35 origin - TomC - 06-17-2018, 05:56 PM RE: HP-35 origin - mcquiggi - 06-17-2018, 06:15 PM RE: HP-35 origin - drdbthompson - 06-17-2018, 06:57 PM RE: HP-35 origin - brickviking - 06-18-2018, 12:02 AM RE: HP-35 origin - mcquiggi - 06-18-2018, 12:36 AM RE: HP-35 origin - Harald - 06-18-2018, 07:47 PM RE: HP-35 origin - brickviking - 06-18-2018, 11:05 PM RE: HP-35 origin - Gerson W. Barbosa - 06-19-2018, 08:15 AM RE: HP-35 origin - ttw - 12-10-2018, 04:00 AM RE: HP-35 origin - StephenG1CMZ - 06-19-2018, 10:22 AM RE: HP-35 origin - Thomas Okken - 06-19-2018, 11:09 AM RE: HP-35 origin - brickviking - 06-20-2018, 07:31 PM RE: HP-35 origin - Gerson W. Barbosa - 12-10-2018 02:41 AM RE: HP-35 origin - badaze - 06-17-2018, 08:23 PM RE: HP-35 origin - Valentin Albillo - 06-18-2018, 10:27 PM RE: HP-35 origin - Steve Simpkin - 06-19-2018, 01:26 AM RE: HP-35 origin - Didier Lachieze - 06-19-2018, 05:29 AM RE: HP-35 origin - EdS2 - 06-19-2018, 07:40 AM RE: HP-35 origin - KimH - 12-06-2018, 01:29 PM