Resent-From: <email@example.com> From: Dan Luecking <LookInSig@uark.edu> Date: December 8, 2011 4:00:31 PM MST To: "firstname.lastname@example.org" <email@example.com> Subject: Re: Series expansion for an integral - involving incomplete elliptic integral
On Wed, 7 Dec 2011 09:14:30 +0000, victorphy <firstname.lastname@example.org> wrote:
> Hi, > > > I have a little question about a series expansion, which may be very > basic. > > I would like to expand the integral of ArgCosh[1 + x^2 + a] between 0 > and y >0, at first order in the small parameter a.
I don't see how this is possible. For such a first order expansion to exist, one would need at least that