Re: Another strange bug in Mathematica 4.0's Integrate
- To: mathgroup at smc.vnet.net
 - Subject: [mg25371] Re: Another strange bug in Mathematica 4.0's Integrate
 - From: Hendrik van Hees <h.vanhees at gsi.de>
 - Date: Sun, 24 Sep 2000 16:29:06 -0400 (EDT)
 - Organization: GSI Darmstadt
 - References: <8q21lp$hoh@smc.vnet.net> <ztgz5.89556$Zh6.152771@ralph.vnet.net>
 - Sender: owner-wri-mathgroup at wolfram.com
 
It's funny what the CA-fans argue and don't admit that a bug is a bug.
If I put in
Integrate[Sqrt[r^2-x^2],{x,-r,r},Assumptions->{r>0}]
this is a well defined expression in terms of a real integral. The
square root is positive because the principle value is realised
(according to the online documentation). Further as long as I do not
tell the path of integration it must be a real integral, otherwise
Integrate is not well defined!
-- 
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