Poll: which calculator format do you prefer?
Portrait
Landscape
Doesn't matter
Any of the two above
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Poll: Landscape or Portrait?
03-04-2016, 04:05 PM
Post: #45
RE: Poll: Landscape or Portrait?
(03-04-2016 12:02 PM)striegel Wrote:  Quite right: these do not use any HP ROM (according to the developer). Running programs produce the same results as a real HP-12C. I've tested the 'Program to Structure Gross Pretax Lease Payments' from page 54 of the HP Leasing Applications Handbook and it matches completely.

What would be a really demanding test case?

For built-in functions, I believe solving for Interest (which is usually iterative) would involve the most internal calculations and thus reveal the propagation of rounding errors (errors meaning compared to a real 12C - it's possible this version is actually more accurate than a native 12C).

You could also build and run some simple programs that calculate in a large loop and compare with a real 12C. Also the ASIN(ACOS(ATAN(TAN(... test could reveal inaccuracies as well.

--Bob Prosperi
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Messages In This Thread
Poll: Landscape or Portrait? - Jlouis - 03-03-2016, 12:43 AM
RE: Poll: Landscape or Portrait? - Jlouis - 03-03-2016, 01:10 AM
RE: Poll: Landscape or Portrait? - Jlouis - 03-03-2016, 01:00 AM
RE: Poll: Landscape or Portrait? - Jlouis - 03-03-2016, 01:35 AM
RE: Poll: Landscape or Portrait? - Jlouis - 03-04-2016, 02:00 AM
RE: Poll: Landscape or Portrait? - rprosperi - 03-04-2016 04:05 PM
RE: Poll: Landscape or Portrait? - Jlouis - 03-04-2016, 01:58 AM
RE: Poll: Landscape or Portrait? - TASP - 03-03-2016, 03:29 AM
RE: Poll: Landscape or Portrait? - anetzer - 03-04-2016, 09:32 PM
RE: Poll: Landscape or Portrait? - klesl - 03-03-2016, 07:36 AM
RE: Poll: Landscape or Portrait? - Jlouis - 03-03-2016, 05:02 PM
RE: Poll: Landscape or Portrait? - Jlouis - 03-03-2016, 07:37 PM
RE: Poll: Landscape or Portrait? - emece67 - 03-03-2016, 11:59 PM
RE: Poll: Landscape or Portrait? - Jlouis - 03-04-2016, 02:04 AM
RE: Poll: Landscape or Portrait? - anetzer - 03-04-2016, 09:40 PM
RE: Poll: Landscape or Portrait? - JimP - 03-04-2016, 11:57 PM
RE: Poll: Landscape or Portrait? - Jlouis - 03-05-2016, 12:21 AM
RE: Poll: Landscape or Portrait? - Marcio - 03-05-2016, 12:28 AM
RE: Poll: Landscape or Portrait? - Jlouis - 03-05-2016, 12:31 AM
RE: Poll: Landscape or Portrait? - Jlouis - 03-05-2016, 02:27 AM
RE: Poll: Landscape or Portrait? - Jlouis - 03-05-2016, 11:16 AM
RE: Poll: Landscape or Portrait? - Jlouis - 03-05-2016, 12:44 PM
RE: Poll: Landscape or Portrait? - Jlouis - 03-05-2016, 10:13 PM
RE: Poll: Landscape or Portrait? - Jlouis - 03-06-2016, 09:14 AM
RE: Poll: Landscape or Portrait? - JimP - 03-08-2016, 06:11 AM
RE: Poll: Landscape or Portrait? - Jlouis - 03-05-2016, 12:51 PM
RE: Poll: Landscape or Portrait? - Jlouis - 03-05-2016, 02:31 AM
RE: Poll: Landscape or Portrait? - Marcio - 03-06-2016, 07:35 PM
RE: Poll: Landscape or Portrait? - Jlouis - 03-06-2016, 07:38 PM
RE: Poll: Landscape or Portrait? - TASP - 03-06-2016, 09:28 PM
RE: Poll: Landscape or Portrait? - Jlouis - 03-06-2016, 11:00 PM
RE: Poll: Landscape or Portrait? - TASP - 03-07-2016, 01:14 AM



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