Karim BELABAS on Tue, 22 Oct 2002 21:47:35 +0200 (MEST) |
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Re: gp: besselj(0,1+O(x)) |
On Mon, 23 Sep 2002, Michael Somos wrote: > ? for(n=1,3,print(n" "besselj(0,1+O(x^n)))) > 1 3/4 + O(x) > 2 49/64 + O(x^2) > 3 1763/2304 + O(x^3) > ? \v > GP/PARI CALCULATOR Version 2.2.4 (development CHANGES-1.491) > i686 running linux (ix86 kernel) 32-bit version > (readline v4.2a enabled, extended help not available) > > This does not seem right. Shalom, Michael Apparently, Bessel J and K functions were only implemented around x = 0. I've replaced the above bogus answers by an error message, for now. Thanks, Karim. -- Karim Belabas Tel: (+33) (0)1 69 15 57 48 Dép. de Mathematiques, Bat. 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/