|Bill Allombert on Sun, 31 Oct 1999 13:35:35 +0100 (MET)|
[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]
|Euclidian division and Off-topic question.|
I do not know what is the euclidean quotient of two rational. Perhaps (a/b)\(c/d)=ad\bc ? Or perhaps we must divide by gcd(b,d) ? Do you know an use for this operation ? >Off-topic question: I guess most readers here don't know what the >allusion to Blaise Pascal was about; could you elaborate? If it was an UNIX mailing-list I would simply answer RTFM, but as it is not, I will quote the manual of gp (in doc/gp.1) which is normaly readable by typing "man gp" in a shell. TRIVIA ... PARI has nothing to do with the French capital. The name just stuck when the authors started to implement the system in Pascal (they quickly switched to C). For the benefit of non-native French speakers, here's a slightly expanded explanation: Blaise Pascal (1623-1662) was a famous French mathematician and philosopher who was one of the founders of probability and devised one of the first "arithmetic machines". He once proposed the following "proof" of the existence of God for the unbelievers: whether He exists or not I lose nothing by believing in Him, whereas if He does and I misbehave... This is the so-called "pari de Pascal" (Pascal's bet). ... Bill.