Search found 193 matches

by DA74254
Sat Jul 22, 2023 7:19 pm
Forum: DM41X
Topic: Recommended box for DM41X?
Replies: 24
Views: 5685

Re: Recommended box for DM41X?

Several people here have 3D-printed their own case.
Models freely available at thingiverse.

Your excuse to defend the purchase of a 3D printer :D
by DA74254
Tue Jul 11, 2023 7:29 am
Forum: Discuss!
Topic: Comparison table for HP and SwissMicros RPN calculator models
Replies: 35
Views: 7383

Re: Comparison table for HP and SwissMicros RPN calculator models

Updated the main HP Plus RPN Calculator Comparison Table web page. It now include a seperate table that has a HP Plus RPN/RPL Graphing Calculator Comparison Table . This new page also includes its own HP Plus RPN/RPL Graphing Calculator Photo Gallery . As always, feedback is appreciated. Hi, There ...
by DA74254
Sun Jul 02, 2023 9:20 pm
Forum: C47/C43, WP43, WP34S
Topic: WP43 News
Replies: 2102
Views: 759377

Re: WP43 News

This time I had to reset it a couple of times (it freezed on press the key in the bottom left ) before successfully running the program. Happened to me as well. Contemplating a bit if it was due for a slight panic attack. Though, after flashing qspi, I manually loaded wp43.prg and it came back to l...
by DA74254
Sun Jul 02, 2023 8:56 pm
Forum: C47/C43, WP43, WP34S
Topic: WP43 News
Replies: 2102
Views: 759377

Re: WP43 News

Thank you.
Just successfully flashed.
Now I'm off to read the updated OM and ReM :)
by DA74254
Fri Jun 30, 2023 12:38 pm
Forum: DM32
Topic: Maths precision compared to DM42
Replies: 14
Views: 1967

Re: Maths precision compared to DM42

Precision in the realms of both DM and WP calcs I guess is mostly for us calcoholic nerds. As mentioned, NASA uses 15 decimals precision for interplanetary calculations. I calculated the earth orbit to deviate 0,007mm with 15 vs 16 decimals of Pi. Yet again, I also calculated/converted my land plot ...
by DA74254
Fri Jun 30, 2023 7:45 am
Forum: DM32
Topic: Maths precision compared to DM42
Replies: 14
Views: 1967

Re: Maths precision compared to DM42

It amazes me there might be a real world application where a difference in the 31st digit matters. I live in the engineering world where having six digits for the inputs to a calculation is very good, and it is usually fewer than that. For JPL's highest accuracy calculations, which are for interpla...
by DA74254
Thu Jun 29, 2023 4:49 pm
Forum: DM32
Topic: Maths precision compared to DM42
Replies: 14
Views: 1967

Re: Maths precision compared to DM42

Rhanks @akaTB. I must have been a tad quick while reading that section in the OM :oops:
by DA74254
Thu Jun 29, 2023 3:02 pm
Forum: DM32
Topic: Maths precision compared to DM42
Replies: 14
Views: 1967

Re: Maths precision compared to DM42

Albeit, WP43 cannot calculate this high factorial directly, but do so via LnGamma, which then is prone to rounding errors at 34 digits. Not quite true: WP43 returns 1.479 907 299 403 249 333 203 306 687 281 203E+6143 for 2123.! (note the decimal point) which compares well with Wolfram Alpha while b...
by DA74254
Thu Jun 29, 2023 9:51 am
Forum: DM32
Topic: Maths precision compared to DM42
Replies: 14
Views: 1967

Re: Maths precision compared to DM42

Just to throw in a couple extra calculators:
Wolfram Alpha; ...1202(623751623...)
WP43: ...9395
Albeit, WP43 cannot calculate this high factorial directly, but do so via LnGamma, which then is prone to rounding errors at 34 digits.
I have only displayed the digits that you gave highlighted in bold.
by DA74254
Mon Jun 19, 2023 5:28 pm
Forum: C47/C43, WP43, WP34S
Topic: Waitlist for C47 (faceplates)
Replies: 82
Views: 11002

Re: Waitlist for C47

Count me in for one, maybe two units.