Simulating 15C RAN # on 35s

[Tugdual]

(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...