Why all the if's the answer

*To*: mathgroup at smc.vnet.net*Subject*: [mg70783] Why all the if's the answer*From*: aaronfude at gmail.com*Date*: Fri, 27 Oct 2006 00:28:34 -0400 (EDT)

Suppose I start with : f = -Log[y*(1 + Cos[alpha])] + Log[(b*c - b*y + c*y*Cos[alpha] + Sqrt[b^2*(c - y)^2 + c^2*y^2 + 2*b*c*(c - y)*y*Cos[alpha]])/c]; which I think is relatively innocent. I then integrate over y: Assuming[y > 0 && c > 0 && b > 0 && alpha > 0 && alpha < Pi/2, Integrate[y/c*f, {y, 0, c}]] After a few hours get a humongous answer with many If's, etc. What else can I assume or otherwise do to get an analytical answer? Many thanks in advance! Aaron Fude

**Follow-Ups**:**Re: Why all the if's the answer***From:*Carl Woll <carlw@wolfram.com>

**Re: Why all the if's the answer***From:*"Chris Chiasson" <chris@chiasson.name>