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(hp-15c) RCL Z !?
02-04-2022, 06:56 PM (This post was last modified: 02-04-2022 07:59 PM by Tim Roche.)
Post: #1
(hp-15c) RCL Z !?
While looking at Palmer Hanson's Cadillac quadratic solver for the hp-33s and hp-35s, I found an archive article entitled:

Update: 13 digit precision on HP-15c (from Palmer Hanson).

This article includes a program listing for the hp-15c 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 hp-15c.

Does anyone know how I might input RCL Z on an hp-15c?

ter
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02-04-2022, 07:53 PM
Post: #2
RE: (hp-15c) RCL Z !?
(02-04-2022 06:56 PM)Tim Roche Wrote:  Does know how I might input RCL Z on an hp-15c?

Well, the referenced article is about "AN EXTENDED QUADRATIC SOLUTION FOR THE HP-41" …. so the programs in this article are not for the 15C.
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02-04-2022, 07:57 PM (This post was last modified: 02-05-2022 12:58 AM by Tim Roche.)
Post: #3
RE: (hp-15c) RCL Z !?
My mistake. Was interested in hp-15c implementation of Palmer Hanson's trick for increased precision.

Edit: For those of you who are laughing at me--you have good reason: The quadratic equation solver with 13 digit precision is in the Advanced Functions Handbook for the hp-15c; right at the tail end of the book/pdf-file.

ter
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