Model: 12CPA, differences from -12CPt General: Introduction: Date: 2006-08-? Price: ? Memory: Named-Registers: It has a total of 70 cash flow registers. Non-Programmable-Operations:: f + + increases contrast f + - decreases contrast Bugs/ROM-Versions:: - CLx, Enter, \GS-, and \GS+ (correctly) disable stack lift for subsequent EEX, RCL and digit but _not_ for LSTx. - CHS doesn't affect stack lift. - Stack life is not disabled on TVM entry. A subsequent Rv is therefore often required. Rv followed by a TVM key merely stores the value, so a second TVM key press is then required to solve. - The sequence: 1 Enter 1.012 Enter CLx DATE 2 Rv gives 1 on a 12C but 1.012 on a CPA. - The sequence: 1 Enter CHS 2 Rv gives 1 on a 12C and 1 on a CPA. See the HPMuseum enter on 25 July 2006 for more on this one. - Displaying program lines is much slower on a 12CPA than a 12C. - Pressing f then holding down SST in PRGM mode slowly fills memory with "42 34" (CLx). - Pressing g CFi does not auomatically reset Nj to 1. - AMORT does not do RCL PMT f RND PMT. It does use the rounded PMT though. This bug is similar to ones on the 18C and 17BII+. Notes:: IRR behavior is slightly different. Code is definitely developed by HP based on the 17BII+ firmware. Comes with a leather case. 25th Anniversary edition. All 12cpt bugs have been fixed.
I am Craig A. Finseth.
Last modified Saturday, 2012-02-25T17:29:20-06:00.