Re: Why does this lead to an answer with complex numbers?
- To: mathgroup at smc.vnet.net
- Subject: [mg71464] Re: Why does this lead to an answer with complex numbers?
- From: aaronfude at gmail.com
- Date: Mon, 20 Nov 2006 02:43:44 -0500 (EST)
- References: <firstname.lastname@example.org>
Hi, Thanks for all the answers. They were all very useful, even though I have done my best to confuse everyone by leaving a beta in there which had nothing to do with the problem. So I understand that the answer may be complex and the complex part is constant which is in a certain sense valid for a indefinite integral. But I very much need a real answer and I still can't quite extract. Consider the following: \!\(\(\(\ \)\(Assuming[x > 0 && A > 0 && B > 0 && \ B < 1, \ FullSimplify[Integrate[Log[\@\(A^2 + x\^2\) - B*x\ ], \ x]]]\)\)\) The answer that I get is correct, but not very useful since it is appears complex and I could find a way to determine the real part. Do you have any suggestions? Thank you! Aaron Fude