Shubba, It is hard to imagine why you would want to solve a 100th order equation. You might want to make absolutely certain that you are thinking about the correct problem. What are you trying to do? To do what you want you will need a very large dataset. Perhaps you need to fit some time of smoothing function (e.g. smoothing spline) to your data. John
John David Sorkin M.D., Ph.D. Chief, Biostatistics and Informatics University of Maryland School of Medicine Division of Gerontology Baltimore VA Medical Center 10 North Greene Street GRECC (BT/18/GR) Baltimore, MD 21201-1524 (Phone) 410-605-7119 (Fax) 410-605-7913 (Please call phone number above prior to faxing) >>> "Shubha Vishwanath Karanth" <[EMAIL PROTECTED]> 5/24/2008 7:52 AM >>> 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 > > > > This e-mail may contain confidential and/or privileged i...{{dropped:13}} > > > ------------------------------------------------------------------------ > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > This e-mail may contain confidential and/or privileged i...{{dropped:10}} ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Confidentiality Statement: This email message, including any attachments, is for th...{{dropped:6}} ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
