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PC-1211, PC-1250, etc. TVM
03-30-2021, 05:07 PM
Post: #2
RE: PC-1211, PC-1250, etc. TVM
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.

For example (SQR is sqrt):

SQR 2 * SQR 2
2


X=SQR 2
X*X
1.999999999


There is a small penalty to use variables to store (temporary) results. It is sometimes beneficial to "inline" expressions to preserve or increase accuracy.

- Rob

"I count on old friends" -- HP 71B,Prime|Ti VOY200,Nspire CXII CAS|Casio fx-CG50...|Sharp PC-G850,E500,2500,1500,14xx,13xx,12xx...
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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 - robve - 04-01-2021, 05:50 PM
RE: PC-1211, PC-1250, etc. TVM - robve - Yesterday, 09:17 PM



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