Which of the following do you prefer?
Ralf
=====================================================
(1) -> integrate(1/(x^2-7),x)
2 +-+
(x + 7)\|7 - 14x
log(------------------)
2
x - 7
(1) -----------------------
+-+
2\|7
Type: Union(Expression(Integer),...)
(2) -> simplify(((x^2+7)*sqrt(7) - 14*x)/(x^2-7))
+-+
x\|7 - 7
(2) ---------
+-+
\|7 + x
Type: Expression(Integer)
====================================================
Mathematica 7.0 for Linux x86 (32-bit)
Copyright 1988-2008 Wolfram Research, Inc.
In[1]:= Integrate[1/(x^2-7),x]
Log[Sqrt[7] - x] - Log[Sqrt[7] + x]
Out[1]= -----------------------------------
2 Sqrt[7]
====================================================
|\^/| Maple 11 (IBM INTEL LINUX)
._|\| |/|_. Copyright (c) Maplesoft, a division of Waterloo Maple Inc.
2007
\ MAPLE / All rights reserved. Maple is a trademark of
<____ ____> Waterloo Maple Inc.
| Type ? for help.
> int(1/(x^2-7),x);
1/2
1/2 x 7
-1/7 7 arctanh(------)
7
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