[Maxima-bugs] [ maxima-Bugs-2585809 ] Maxima can't solve equation

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Bugs item #2585809, was opened at 2009-02-10 11:12
Message generated for change (Comment added) made by willisbl
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Category: Lisp Core - Solving equations
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Maxima can't solve equation

Initial Comment:
I took the following equation from one of the books mentioned in the Maxima documents site:

-log(x^2-x+1)/6+ atan((2*x-1)/sqrt(3))/sqrt(3) + log(x+1)/3

tried to solve it with Maxima but all I got was:

(%o9) [atan((2*x-1)/sqrt(3))=-(2*sqrt(3)*log(x+1)-sqrt(3)*log(x^2-x+1))/6]



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>Comment By: Barton Willis (willisbl)
Date: 2009-02-11 06:19

Message:
Correct me if I'm wrong, I'm pretty sure that this equation doesn't have a
solution that can be
expressed in terms of logarithms, exponentials, and etc. Maybe the
reference (which one) showed
how to numerically solve this equation (Newton method, ...)?

There are plenty of equations that Maxima should solve, but doesn't;
however, I don't think your
example should be considered a bug.

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You can respond by visiting: 
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