Karim BELABAS on Mon, 13 Jan 2003 12:43:20 +0100 (MET) |
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Re: Pi |
On Sun, 12 Jan 2003, Ralf Stephan wrote: > The manual says (p.69) a copy of Pi is created on the heap for quicker > computations next time the function is called. This does not seem > to be true in 2.2.4 as with both \p 12000 and 12200, Pi needs about > one second here (I know it's fast enough but the manual says it). (12:36) gp > \p12000 realprecision = 12002 significant digits (12000 digits displayed) (12:36) gp > Pi; time = 170 ms. (12:36) gp > Pi; time = 0 ms. (12:36) gp > Pi; time = 0 ms. First call is "slow" [ compute Pi and cache it ], next ones are instantaneous. What is your specific example ? Cheers, Karim. -- Karim Belabas Tel: (+33) (0)1 69 15 57 48 Dép. de Mathématiques, Bât. 425 Fax: (+33) (0)1 69 15 60 19 Université Paris-Sud Email: Karim.Belabas@math.u-psud.fr F-91405 Orsay (France) http://www.math.u-psud.fr/~belabas/ -- PARI/GP Home Page: http://www.parigp-home.de/