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Did the HP-65 record data?
03-23-2017, 06:04 PM (This post was last modified: 03-23-2017 06:27 PM by Matt Agajanian.)
Post: #18
RE: Did the HP-65 record data?
(03-23-2017 01:58 PM)Dieter Wrote:  
(03-22-2017 04:34 PM)Willy R. Kunz Wrote:  BTW, the "67/97 program with a more accurate approximation where the constants are intended to be stored on a data card" Dieter mentioned above may now be downloaded for RPN-67/97 here. (Scroll down to the Math section.)

As already mentioned in the thread with that program: the RPN-67 version contains two data sets for two slightly different rational approximations. However, the provided program version will work correctly only with the first, original data set that is stored in the primary registers! Do not use the alternate set with that program!

Willy, please update your RPN-67 program and data cards. There are two options:
(1) Leave the program as it is and remove the second coefficient set from the data card.
(2) Preferred method: Only use the second, slightly improved coefficient set and (!) apply two changes to the program:
(2a) Change the constant 1,38 in line 033 ff to 1,42
(2b) Change the constant 5 in line 027 to 4,68.

Users that already have downloaded the RPN-67 version simply should not use the coefficient set in the secondary registers. If you want to use the optimized approximation, read the data card, do a CLREG and P<>S to delete the first and activate the second coefficient set, and finally write a new data card. Then apply the mentioned changes to the program and save the corrected result to a new program card. At least unless Willy provides a corrected version.

Dieter

I'm a wee bit confused here.

I have updated to the most recent version of RPN-67 and the Normal & Inverse Normal Distribution card, in the Stat library, labeled ST1-09A, has the coefficients and storage commands in the program, I don't see a separate Data card. What Normal & Inverse Normal Distribution card is this discussion referring to?

Thank you.
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Messages In This Thread
RE: Did the HP-65 record data? - Dieter - 03-22-2017, 01:36 PM
RE: Did the HP-65 record data? - teenix - 03-22-2017, 10:45 PM
RE: Did the HP-65 record data? - SlideRule - 03-23-2017, 02:22 PM
RE: Did the HP-65 record data? - SlideRule - 03-23-2017, 04:12 PM
RE: Did the HP-65 record data? - SlideRule - 03-22-2017, 02:00 PM
RE: Did the HP-65 record data? - Dieter - 03-23-2017, 01:58 PM
RE: Did the HP-65 record data? - Matt Agajanian - 03-23-2017 06:04 PM
RE: Did the HP-65 record data? - Dieter - 03-23-2017, 07:35 PM
RE: Did the HP-65 record data? - Dieter - 03-22-2017, 08:13 PM
RE: Did the HP-65 record data? - Dieter - 03-22-2017, 08:16 PM
RE: Did the HP-65 record data? - Gene - 03-22-2017, 09:58 PM



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