Search found 102 matches

by rawi
Tue Mar 19, 2024 3:36 pm
Forum: Update Announcements
Topic: UPDATE: DM32 v2.08
Replies: 5
Views: 799

Re: UPDATE: DM32 v2.08

Thank you for another smooth update!
One feature of the update is that CPU clock is switched when powered by USB.
I made a speed test (the same as in this post: viewtopic.php?f=33&t=3537 ).
Result: 3 seconds with USB power supply compared to 8 on battery.
Impressive!
by rawi
Sun Mar 10, 2024 3:21 pm
Forum: C47/C43, WP43, WP34S
Topic: C47: Integration performance and accuracy
Replies: 42
Views: 4039

Re: C47: Integration performance and accuracy

wgr wrote: Example: In Mathematica I compute this: N[Sin[31 Degree], 34] Answer: 0.5150380749100542100816319363981383 Punching in 32 Sin , in Degrees mode, on the DM32 gives this (using Show): 0.5150380749100542100816319363981382 So the last digit is off. Computing 31 sin x^2 31 cos x^2 + on the DM3...
by rawi
Thu Feb 08, 2024 9:43 am
Forum: C47/C43, WP43, WP34S
Topic: C47 New user feedback
Replies: 43
Views: 10830

Re: C47 New user feedback

Or OLS (Ordinary Least Squares)?
by rawi
Tue Dec 26, 2023 11:29 pm
Forum: Discuss!
Topic: A simple definite integral, isn't it?
Replies: 29
Views: 75416

Re: A simple definite integral, isn't it?

Walter wrote:
This integral is trivial for a CAS.
I agree. But the question remains: Why could it not be solved by HP 50g, which has a CAS integrated, and by HP Prime in CAS Mode?
by rawi
Tue Dec 26, 2023 9:40 am
Forum: Discuss!
Topic: A simple definite integral, isn't it?
Replies: 29
Views: 75416

Re: A simple definite integral, isn't it?

What is interesting are the results of other calculators: HP Prime in Home mode: "Error: undefined result" HP Prime in CAS Mode: Warning message: "Adaptive method failure, will try with Romberg, last approximation was undef Infinity or undefined limit at bounds. Using middle point Rom...
by rawi
Sun Dec 03, 2023 4:25 pm
Forum: DM32
Topic: How to load .pgm files?
Replies: 7
Views: 690

Re: How to load .pgm files?

With DM32 you cannot load or save single programs but only complete states.
by rawi
Mon Nov 20, 2023 9:26 am
Forum: Discuss!
Topic: Short and Sweet Math Challenge #1
Replies: 40
Views: 9208

Re: Short and Sweet Math Challenge #1

A new solution with HP Prime G2 (all results showed up immediately; only task 6 took a few seconds): 1. -0.946083070367 2. 2.000000000000 3. Error message "invalid input." 4. 1.77245374158 5. 4.317536556730 6. 0.390529009507 A comparison of these results with the solution of the DM32 and a...
by rawi
Sun Nov 19, 2023 10:09 am
Forum: Discuss!
Topic: Short and Sweet Math Challenge #1
Replies: 40
Views: 9208

Re: Short and Sweet Math Challenge #1

Walter wrote:
looking at the menu in WP43 EQN you'd find two arrows at its wings which do what you want, don't they?
I am not talking about WP43 but about DM32.
by rawi
Sun Nov 19, 2023 9:23 am
Forum: Discuss!
Topic: Short and Sweet Math Challenge #1
Replies: 40
Views: 9208

Re: Short and Sweet Math Challenge #1

Walter wrote: What do you miss most in editing within EQN? I can only edit it by going back with the left-oriented arrow and deleting what I wrote. So, if I made a mistake at the beginning, I have to write the whole equation again. This is how I understand section 11.8 from the manual. I am missing ...
by rawi
Sun Nov 19, 2023 6:37 am
Forum: Discuss!
Topic: Short and Sweet Math Challenge #1
Replies: 40
Views: 9208

Re: Short and Sweet Math Challenge #1

Walter wrote: Can you also do with more significant digits? I did it with two digits more (FIX 8). The results with time needed in seconds: 1. -0.94608307 (49) 2. 1.99998390 (66) 3. 0.91893853 (115) 4. 1.77243775 (104) 5. 3.07099379 (6) 6. 0.39051959 (125) What is interesting is how computation time...