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Re: [Help-gsl] Solve a quartic equation ?
From: |
John D Lamb |
Subject: |
Re: [Help-gsl] Solve a quartic equation ? |
Date: |
Wed, 29 Jun 2005 07:34:35 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.7) Gecko/20050414 |
Maxime Boissonneault wrote:
> Hello,
> In the documentation, I read that polynomial equations can be solved
> exactly up to the fourth ordrer. However, I found nothing in GSL that
> allows this solution to be found, there are only the solutions up to
> third order.
>
> Is there a way, other than an iterative process implying optimization,
> to solve the quartic equation with GSL ?
>
The method is descibed here in detail
http://mathworld.wolfram.com/QuarticEquation.html
I believe the method was learnt by mathematics students in the 1930s but
is now considered less useful.
--
JDL