symbolically solve an integral of ArcSinh[..]
- To: mathgroup at smc.vnet.net
 - Subject: [mg7809] symbolically solve an integral of ArcSinh[..]
 - From: pknaus at psap73.cern.ch (Patrick KNAUS)
 - Date: Sat, 12 Jul 1997 02:45:51 -0400
 - Organization: CERN, European Laboratory for Particle Physics
 - Sender: owner-wri-mathgroup at wolfram.com
 
Hello,
could you please help me with the following problem:
I try to integrate symbolically
  Integrate[ArcSinh[(a-Sqrt[b^2-x^2])/(c-x)],x] where a,b,c=const
but don't obtain any solution using Mathematica 2.2 and 3.0. I tried some
equivalent formulations of the integrand like
  ArcSinh[z]=Log[z-Sqrt[1+z^2]
  ArcSinh[z]=-I ArcSin[I z]
where z is the argument of ArcSinh in the integral: without success. Are
there any tricks you could suggest me to try out, any nice substitution?
I suspect the solution to contain some elliptic integrals.
best wishes,
Patrick
 
--
-----	
From:   Patrick Knaus   
To: mathgroup at smc.vnet.net
        CERN, Division PS           Email: Patrick.Knaus at cern.ch
        CH-1211 Geneva 23           Tel:   +41-22-767.2593