PC-1211, PC-1250, etc. TVM
04-01-2021, 04:44 PM
Post: #3
 Dave Britten Senior Member Posts: 2,314 Joined: Dec 2013
RE: PC-1211, PC-1250, etc. TVM
(03-30-2021 05:07 PM)robve Wrote:  Thanks for sharing!

(03-30-2021 04:58 PM)Dave Britten Wrote:  I'm not sure if the Sharps use binary rather than decimal, but I did notice that solving for PMT in a problem where FV=0, then immediately solving for FV could yield small non-zero values on the order of 1E-5.

FYI. SHARP pocket computers use 10 digits BCD to display values and store values in variables and 12 digits internally to evaluate expressions.

Good to know!

Interestingly, I tested the same TVM program on the EL-5500III that I received in the mail today (this model supports two-character variable names, so explicit * had to be inserted in most of the implied multiplications), and it seems to have better accuracy. Example:

N=360
I=4.75/12 (3.958333333E-01)
PV=141000
FV=0

Solve for PMT, on both machines:
PMT=-735.5227446

Then immediately solve for FV without entering anything else.

PC-1250A (Tandy PC-3):
FV=3.731560805E-05

EL-5500III:
FV=0.
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 Messages In This Thread PC-1211, PC-1250, etc. TVM - Dave Britten - 03-30-2021, 04:58 PM RE: PC-1211, PC-1250, etc. TVM - robve - 03-30-2021, 05:07 PM RE: PC-1211, PC-1250, etc. TVM - Dave Britten - 04-01-2021 04:44 PM RE: PC-1211, PC-1250, etc. TVM - robve - 04-01-2021, 05:50 PM RE: PC-1211, PC-1250, etc. TVM - robve - 05-29-2024, 09:17 PM RE: PC-1211, PC-1250, etc. TVM - dm319 - 05-31-2024, 01:11 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-02-2024, 06:37 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-02-2024, 11:18 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-11-2024, 03:32 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 05-31-2024, 10:39 PM RE: PC-1211, PC-1250, etc. TVM - robve - 06-01-2024, 01:07 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-01-2024, 09:47 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-01-2024, 03:07 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-01-2024, 10:13 PM RE: PC-1211, PC-1250, etc. TVM - robve - 06-02-2024, 09:46 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-03-2024, 11:38 AM RE: PC-1211, PC-1250, etc. TVM - robve - 06-03-2024, 06:44 PM RE: PC-1211, PC-1250, etc. TVM - robve - 06-04-2024, 12:26 AM RE: PC-1211, PC-1250, etc. TVM - Dave Britten - 06-04-2024, 07:33 PM RE: PC-1211, PC-1250, etc. TVM - robve - 06-04-2024, 11:35 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-05-2024, 01:05 AM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-05-2024, 12:34 PM RE: PC-1211, PC-1250, etc. TVM - robve - 06-05-2024, 07:16 PM RE: PC-1211, PC-1250, etc. TVM - dm319 - 06-05-2024, 10:06 PM RE: PC-1211, PC-1250, etc. TVM - dm319 - 06-06-2024, 11:02 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-07-2024, 12:27 AM RE: PC-1211, PC-1250, etc. TVM - dm319 - 06-08-2024, 06:19 PM RE: PC-1211, PC-1250, etc. TVM - robve - 06-08-2024, 09:21 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-08-2024, 11:47 PM RE: PC-1211, PC-1250, etc. TVM - robve - 06-09-2024, 12:06 AM RE: PC-1211, PC-1250, etc. TVM - rprosperi - 06-09-2024, 01:22 PM RE: PC-1211, PC-1250, etc. TVM - nickapos - 06-12-2024, 05:20 AM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-06-2024, 12:27 AM RE: PC-1211, PC-1250, etc. TVM - dm319 - 06-06-2024, 11:34 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-07-2024, 01:45 AM RE: PC-1211, PC-1250, etc. TVM - robve - 06-07-2024, 02:30 AM RE: PC-1211, PC-1250, etc. TVM - robve - 06-08-2024, 08:38 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-08-2024, 09:19 PM RE: PC-1211, PC-1250, etc. TVM - dm319 - 06-09-2024, 10:12 AM RE: PC-1211, PC-1250, etc. TVM - robve - 06-11-2024, 07:13 PM RE: PC-1211, PC-1250, etc. TVM - dm319 - 06-11-2024, 10:32 PM RE: PC-1211, PC-1250, etc. TVM - robve - 06-12-2024, 12:29 AM RE: PC-1211, PC-1250, etc. TVM - dm319 - 06-12-2024, 12:45 PM RE: PC-1211, PC-1250, etc. TVM - robve - 06-12-2024, 04:58 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-12-2024, 05:01 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-12-2024, 04:25 PM RE: PC-1211, PC-1250, etc. TVM - dm319 - 06-22-2024, 12:12 PM RE: PC-1211, PC-1250, etc. TVM - Albert Chan - 06-22-2024, 12:47 PM RE: PC-1211, PC-1250, etc. TVM - robve - 06-22-2024, 08:39 PM

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