Post Reply 
TI59 Diagnostic forensics
07-27-2020, 03:51 PM (This post was last modified: 07-27-2020 04:18 PM by Pjwum.)
Post: #7
RE: TI59 Diagnostic forensics
Some clarifications:

- fp() means fractional part
- 5<30 stands for the polar notation of length 5 and 30 degrees (didn't find the suitable TeX-command). The TI will drop the 5 and only use 30 as a number in the subsequent subtraction.
- the program has only a few steps but occupies the beginning and the end of the program area by inserting a lot of empty commands; together with its adressing the lowest and highest storage registers the RAM might be sufficiently tested
- yes, the Diagnostic card is described in the English manual but not in the German version; the card was also not part of the German package.
- concerning the formula, I guess basic operations could be done in the CPU, the TMC0501. For trigonometry as needed in polar conversions it will access lookup tables (and of course the value of pi) in the ROM- chip.

As far as I could see the trigonometric calculation in pol(rec(5 <30)) produced a small inaccuracy of 0.00000000007.

I don't have an HP67, the rightous foe. Is there anyone who could do the test?
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
TI59 Diagnostic forensics - Pjwum - 07-26-2020, 06:47 PM
RE: TI59 Diagnostic forensics - johanw - 07-27-2020, 01:15 AM
RE: TI59 Diagnostic forensics - rprosperi - 07-27-2020, 02:20 AM
RE: TI59 Diagnostic forensics - pinkman - 07-27-2020, 09:35 PM
RE: TI59 Diagnostic forensics - Pjwum - 07-27-2020 03:51 PM
RE: TI59 Diagnostic forensics - rprosperi - 07-27-2020, 09:51 PM
RE: TI59 Diagnostic forensics - rprosperi - 07-28-2020, 06:55 PM
RE: TI59 Diagnostic forensics - rprosperi - 07-28-2020, 10:05 PM
RE: TI59 Diagnostic forensics - Pjwum - 07-28-2020, 05:17 PM
RE: TI59 Diagnostic forensics - Pjwum - 07-28-2020, 05:43 PM
RE: TI59 Diagnostic forensics - rprosperi - 07-28-2020, 07:01 PM
RE: TI59 Diagnostic forensics - Pjwum - 07-28-2020, 08:49 PM
RE: TI59 Diagnostic forensics - rprosperi - 07-28-2020, 09:57 PM
RE: TI59 Diagnostic forensics - Pjwum - 07-27-2020, 03:57 PM
RE: TI59 Diagnostic forensics - Werner - 07-28-2020, 10:09 AM
RE: TI59 Diagnostic forensics - rprosperi - 07-28-2020, 12:51 PM
RE: TI59 Diagnostic forensics - johanw - 07-29-2020, 07:46 PM
RE: TI59 Diagnostic forensics - Pjwum - 07-29-2020, 08:49 PM
RE: TI59 Diagnostic forensics - Werner - 07-30-2020, 02:11 PM
RE: TI59 Diagnostic forensics - Werner - 07-28-2020, 01:13 PM
RE: TI59 Diagnostic forensics - rprosperi - 07-28-2020, 04:31 PM



User(s) browsing this thread: 1 Guest(s)