HP Forum Archive 16

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560 Digits of Pi with a HP-41C Message #1 Posted by J-F Garnier on 21 Nov 2006, 12:58 p.m. Hi, Programs to compute multiple digits of Pi are very commun, and a lot of versions for the HP-41 exist. I decided to put online my own version for the HP-41 I wrote maybe 20 years ago, with it I got 560 digits in about 22h. There are better HP-41 programs that can still be found in PPC archives, but I didn't know them at the time, and I'm still proud of my program, I wrote it without any theoretical knowledge of multiprecision arithmetic. 560 Digits of Pi with a HP-41C J-F Edited: 21 Nov 2006, 12:59 p.m.

Re: 560 Digits of Pi with a HP-41C Message #2 Posted by Les Wright on 22 Nov 2006, 3:24 a.m., in response to message #1 by J-F Garnier i think the last 5 digits of 561 digits in total should be 70277. The image in the top left of the webpage has 70208. Still, very impressive! I wonder if running the same code in Free42 (would take a little tweaking) will give a faster result. 22 hours is a long time! Les

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