Solving simultaneous integral equation

*To*: mathgroup at smc.vnet.net*Subject*: [mg100731] Solving simultaneous integral equation*From*: Mat Davies <mat.davies at rolls-royce.com>*Date*: Thu, 11 Jun 2009 21:45:18 -0400 (EDT)

Hello I have a problem of the form Integrate[f[s],{s,(b-e)/c,(b+e)/c] I am trying to solve for c and e (b is known). f[s] cannot be integrated algebraicly, only by by setting values for e and c and using NIntegrate. I also have a supplimentary equation linking b and c, which cannot be inverted using solve to give a relationship between e and c. I am trying to use NSolve or FindRoot to solve the system of equations, but I keep getting errors saying that algebraic limits are invalid for NIntegrate. Any help or advice would be greatly appreciated. Thanks Mat