## Search found 10 matches

Wed Feb 19, 2020 2:38 pm
Forum: Software Library
Topic: Matrix Viewer
Replies: 11
Views: 470

### Re: Matrix Viewer

Bill (Smithville NJ) wrote:
Wed Feb 19, 2020 1:52 pm
What else should I try?
Update your DM42 to the in just published "release candidate" version 3.17, then it will work. I had the same problem before that.
Wed Feb 19, 2020 8:22 am
Forum: Software Library
Topic: Matrix Viewer
Replies: 11
Views: 470

### Re: Matrix Viewer

Wow, great! I waited for something like this
Sat Jan 04, 2020 5:36 pm
Forum: Discuss!
Topic: Calculate closest fraction or sqrt...
Replies: 3
Views: 211

### Re: Calculate closest fraction or sqrt...

Ah, yes, you are right! If I go to more digits it becomes better. Is it possible to change that behavior?
Sat Jan 04, 2020 11:44 am
Forum: Discuss!
Topic: Calculate closest fraction or sqrt...
Replies: 3
Views: 211

### Calculate closest fraction or sqrt...

Hi there, when i was searching on a program to calculate somehow close fractions or, even better, show a close pi or sqrt value i found this program: https://www.hpmuseum.org/software/qpi/42sqpi.htm Now I'm curious if the behavior on the DM42 is different then on the HP42s. Because I do net get e.g....
Thu Dec 12, 2019 9:46 pm
Forum: DM42
Topic: calculate values of Z-table with DM42
Replies: 9
Views: 435

### Re: calculate values of Z-table with DM42

With a centered and reduced distribution, it is not wise to use infinity as lower limit. For x <0 the probability is (0.5 - integral from x to 0). For x> 0 the probability is (0.5 + integral from 0 to x). Pierre If i think about it, this makes fully sense. Thank you for this second very valuable hi...
Thu Dec 12, 2019 2:14 pm
Forum: DM42
Topic: calculate values of Z-table with DM42
Replies: 9
Views: 435

### Re: calculate values of Z-table with DM42

My second question is: What do I insert, if I want to integrate from -∞. Do i just use a very, very big negative number instead of -∞? Basically, yes. The 42S "Programming Examples and Techniques" manual discusses this exact topic on p.127; I'd suggest reading that as there is some explanation and ...
Thu Dec 12, 2019 2:02 pm
Forum: DM42
Topic: calculate values of Z-table with DM42
Replies: 9
Views: 435

### Re: calculate values of Z-table with DM42

Coyotte wrote:
Thu Dec 12, 2019 1:50 pm
Hello,

I'm far from being a specialist of the subject but just with a developper point of view, I do not see the Square Root appear in your program.
(But maybe is it normal...)

Regards,

Coyotte
Oh, men, you are so right! That was the Issue
Thanks!
Thu Dec 12, 2019 1:26 pm
Forum: DM42
Topic: calculate values of Z-table with DM42
Replies: 9
Views: 435

### Re: calculate values of Z-table with DM42

So I wrote the following program representing the formula: 01 LBL "SND" 02 MVAR "z" 03 RCL "z" 04 x^2 05 +/- 06 0.5 07 x 08 e^x 09 2 10 ENTER 11 PI 12 x 13 SQRT 14 / Now I try to integrate this for the variable z from LLIM = -1 to ULIM = 1 with different accuracy. Shouldn't that return ~0.682 (68,2%...
Wed Dec 11, 2019 5:21 pm
Forum: DM42
Topic: calculate values of Z-table with DM42
Replies: 9
Views: 435

### Re: calculate values of Z-table with DM42

Ok, I'll try that! Thanks!
Tue Dec 10, 2019 9:50 pm
Forum: DM42
Topic: calculate values of Z-table with DM42
Replies: 9
Views: 435

### calculate values of Z-table with DM42

Hi there, as I'm not a native speaker probably there is already the solution for my question in the forums but I'm not able to find it because I search for the wrong terms. I'm a happy new owner of a DM42 and now I'm searching for a solution to calculate the "values of the Z-table" with the calculat...