Simulating 15C RAN # on 35s
02-15-2015, 05:17 PM (This post was last modified: 02-15-2015 05:41 PM by Tugdual.)
Post: #18
 Tugdual Senior Member Posts: 756 Joined: Dec 2013
RE: Simulating 15C RAN # on 35s
(02-15-2015 05:00 PM)Thomas Klemm Wrote:  PS: Maybe it's worth noting that $$15743\times 0.bbbbb+0.52261\times aaaaa$$ will use at most 11 digits. Thus we're fine with the 12 digits of the HP-35S or HP-42S and don't need to FP each of the products before adding them. This could lead to problems when using a calculator that provides only 10 digits as the HP-15C for example.
(15743 * 99999 + 52261 * 99999) * 1e-5 = 6 800 331 996 1e-5
This is 10 digits. How do you conclude 11 are necessary?

Edit: hmmm ok I have a clue.
0.1017980433 is actually 11 digits...
So I had to enter 1017980433 * 1e-10 and STO 0 to store the complete value (using PREFIX we see the 10 digits despite the starting 0).
Unfortunately this doesn't work during calculations...
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 Messages In This Thread Simulating 15C RAN # on 35s - Tugdual - 02-14-2015, 05:13 PM RE: Simulating 15C RAN # on 35s - Namir - 02-15-2015, 03:44 AM RE: Simulating 15C RAN # on 35s - Tugdual - 02-15-2015, 04:01 AM RE: Simulating 15C RAN # on 35s - Paul Dale - 02-15-2015, 05:24 AM RE: Simulating 15C RAN # on 35s - Thomas Klemm - 02-15-2015, 07:28 AM RE: Simulating 15C RAN # on 35s - rprosperi - 02-15-2015, 03:30 PM RE: Simulating 15C RAN # on 35s - Tugdual - 02-15-2015, 03:45 PM RE: Simulating 15C RAN # on 35s - rprosperi - 02-15-2015, 04:12 PM RE: Simulating 15C RAN # on 35s - Tugdual - 02-15-2015, 08:03 AM RE: Simulating 15C RAN # on 35s - Thomas Klemm - 02-15-2015, 08:24 AM RE: Simulating 15C RAN # on 35s - Tugdual - 02-15-2015, 10:37 AM RE: Simulating 15C RAN # on 35s - Paul Dale - 02-15-2015, 11:21 AM RE: Simulating 15C RAN # on 35s - Tugdual - 02-15-2015, 11:42 AM RE: Simulating 15C RAN # on 35s - Thomas Klemm - 02-15-2015, 11:37 AM RE: Simulating 15C RAN # on 35s - Tugdual - 02-15-2015, 12:01 PM RE: Simulating 15C RAN # on 35s - Thomas Klemm - 02-15-2015, 12:54 PM RE: Simulating 15C RAN # on 35s - Thomas Klemm - 02-15-2015, 05:00 PM RE: Simulating 15C RAN # on 35s - Tugdual - 02-15-2015 05:17 PM RE: Simulating 15C RAN # on 35s - Thomas Klemm - 02-15-2015, 05:57 PM

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