See ?polyroot.
However, the numerical stability for such a high-order problem is almost
certainly a serious issue.
On Sat, 24 May 2008, Shubha Vishwanath Karanth wrote:
To apply uniroot I don't even know the interval values... Does numerical
methods help me? Or any other method?
Thanks and Regards,
Shubha
-----Original Message-----
From: Duncan Murdoch [mailto:[EMAIL PROTECTED]
Sent: Saturday, May 24, 2008 5:08 PM
To: Shubha Vishwanath Karanth
Subject: Re: [R] Solving 100th order equation
Shubha Vishwanath Karanth wrote:
Hi R,
I have a 100th order equation for which I need to solve the value for
x. Is there a package to do this?
For example my equation is:
(x^100 )- (2*x^99) +(10*x^50)+.............. +(6*x ) = 4000
I have only one unknown value and that is x. How do I solve for this?
uniroot() will find one root. If you want all of them, I don't know
what is available.
Duncan Murdoch
BR, Shubha
Shubha Karanth | Amba Research
Ph +91 80 3980 8031 | Mob +91 94 4886 4510
Bangalore * Colombo * London * New York * San José * Singapore *
www.ambaresearch.com
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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