On Mon, Feb 9, 2009 at 4:46 PM, Giovanni Petris <gpet...@uark.edu> wrote: > > As suggested by somebody else, uniroot() can be used to solve > equations in one unknown variable. However, you will never get the > "exact x" in R, only an approximate root... > > Best, > Giovanni > >> Date: Sat, 07 Feb 2009 02:20:10 -0800 (PST) >> From: oryie <43248...@qq.com> >> Sender: r-help-boun...@r-project.org >> Precedence: list >> >> >> Hello! >> >> I want to use R to calculate the variable x which is in some eqation, give >> an example: >> >> 3*x-log(x)+1=0, >> >> how to solve equation to get the exact x in R?
That is correct, Giovanni. But the given equation has no (real) solution. Paul ______________________________________________ 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.
