2019-08-07, 21:33 | #1 |
Jun 2019
34_{10} Posts |
Question about Exponentiation modulaire
how to calculate pow(2,23571176971393,1523213.17)
I mean pow(a,e,b) with b non integer = 123213.17 Have a nice day. :) |
2019-08-09, 14:21 | #2 |
Oct 2007
Manchester, UK
10101010010_{2} Posts |
For the specific case of 1523213.17, you could compute mod 152321317 instead, then once you have that value use it to compute your final float mod.
In general, I suppose it depends on how many decimal digits you have and how much precision you need, but multiplying your modulo by 10^n should work decently well for many inputs. |
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