Search found 24 matches

by rawi
Tue Jan 19, 2021 5:39 pm
Forum: Usage tips, tricks and problem reports
Topic: Question about a result
Replies: 15
Views: 292

Re: Question about a result

Thank you Walter, Thomas Okken, ecsfang and akaTB for your answers. Now it became clearer to me. I tried as well with the TI calculators with using exact result and they deliver (-11^(10/11)*3^(2/11)*2^(1/11))/11. If you use the approx key they obviously calculate with CAS first this result which is...
by rawi
Tue Jan 19, 2021 9:16 am
Forum: Usage tips, tricks and problem reports
Topic: Question about a result
Replies: 15
Views: 292

Re: Question about a result

I think it strange that HP calculators and derivates are not able to find the real solution -1.0458. I tried with HP 41, DM 15, DM 41X and HP prime. They all deliver an error message. If I try it with HP prime in CAS mode it delivers the imaginary solution 1.0034 + 0.2946i. On the other side TI 89 T...
by rawi
Tue Dec 08, 2020 9:55 am
Forum: Discuss!
Topic: WP 43S Pilot Run (Poll!)
Replies: 246
Views: 54163

Re: WP 43S Pilot Run (Poll!)

One for me as well.
by rawi
Wed Nov 25, 2020 4:00 pm
Forum: User Software Contributions
Topic: Intersection points between circles
Replies: 0
Views: 180

Intersection points between circles

Program CIP This little program is to determine the intersection points of two circles. Circles are defined by coordinates of midpoint and radius. Midpoints have to be different. Output is coordinates of the intercept points of the two circles. If there is no solution message is given. If both solut...
by rawi
Sat Nov 14, 2020 9:27 am
Forum: Discuss!
Topic: Technical resources back online
Replies: 13
Views: 1504

Re: Technical resources back online

It's a pity that there is no decoder for the DM41X. For a short time there was one, but now there is none. Could it be possible to get one? It makes it much easier to program, to save and to communicate.

Thanks

Raimund
by rawi
Tue Nov 10, 2020 9:19 pm
Forum: User Software Contributions
Topic: Confidence interval for test results
Replies: 0
Views: 138

Confidence interval for test results

Confidence Interval for Efficiency Index (result of testing with pre and test period and test and control group) Background: Basis is the result of a test. Example: You tested the effectiveness of advertising. You have a test grop of 1500 households and a control group of 1500 households. You are me...
by rawi
Mon Nov 02, 2020 5:30 pm
Forum: Discuss!
Topic: Technical resources back online
Replies: 13
Views: 1504

Re: Technical resources back online

Wonderful! The encoder and decoder are very helpful in programming.
One little wish: In the decoder for the DM 42 the line numbers are there, not in the decoder for the DM41X. Is this possible for the DM 41X as well?
Line numbers are quite helpful.
Thank you and best regards

Raimund
by rawi
Thu Oct 22, 2020 6:32 pm
Forum: Firmware updates
Topic: Firmware V31 for DM1x/DM41(L) units
Replies: 6
Views: 614

Re: Firmware V31 for DM1x/DM41(L) units

Thank you very much, it worked!
by rawi
Thu Oct 22, 2020 6:20 pm
Forum: Firmware updates
Topic: Firmware V31 for DM1x/DM41(L) units
Replies: 6
Views: 614

Re: Firmware V31 for DM1x/DM41(L) units

Unfortunately this does not work wirh my DM 15L. I do not know what type of DM15L I have. Perhaps there are some key combinations to find out but that parts of the manual are not yet available. I tried both. When pushing the reset button I first get the message "serial console" and then &q...
by rawi
Fri Oct 09, 2020 10:53 am
Forum: User Software Contributions
Topic: Statistics: Stratified Random Sampling
Replies: 0
Views: 236

Statistics: Stratified Random Sampling

What it does: The program helps to analyse stratified random samples. You can either put in the weights (i.e. the shares of the strata in universe) and the standard deviations within the strata or you can put in a density function and the weights of the strata and the standard deviations within the ...