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
polyroot() is built for this, but it stops at 48th degree polynomials, at least as currently implemented. Not sure that it (or anything else) would be stable beyond that limit. YACAS perhaps?



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