(hp15c) RCL Z !?

02042022, 06:56 PM
(This post was last modified: 02042022 07:59 PM by Tim Roche.)
Post: #1




(hp15c) RCL Z !?
While looking at Palmer Hanson's Cadillac quadratic solver for the hp33s and hp35s, I found an archive article entitled:
Update: 13 digit precision on HP15c (from Palmer Hanson). This article includes a program listing for the hp15c which contains RCL Z. I have scanned through the owner's handbook and the advanced functions handbook without finding a way to execute RCL Z on the hp15c. Does anyone know how I might input RCL Z on an hp15c? ter 

02042022, 07:53 PM
Post: #2




RE: (hp15c) RCL Z !?
(02042022 06:56 PM)Tim Roche Wrote: Does know how I might input RCL Z on an hp15c? Well, the referenced article is about "AN EXTENDED QUADRATIC SOLUTION FOR THE HP41" …. so the programs in this article are not for the 15C. 

02042022, 07:57 PM
(This post was last modified: 02052022 12:58 AM by Tim Roche.)
Post: #3




RE: (hp15c) RCL Z !?
My mistake. Was interested in hp15c implementation of Palmer Hanson's trick for increased precision.
Edit: For those of you who are laughing at meyou have good reason: The quadratic equation solver with 13 digit precision is in the Advanced Functions Handbook for the hp15c; right at the tail end of the book/pdffile. ter 

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