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+--- Thread: (hp-15c) RCL Z !? (/thread-17998.html)
(hp-15c) RCL Z !? - Tim Roche - 02-04-2022 06:56 PM
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?
RE: (hp-15c) RCL Z !? - Didier Lachieze - 02-04-2022 07:53 PM
(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.
RE: (hp-15c) RCL Z !? - Tim Roche - 02-04-2022 07:57 PM
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.