nonlinear equation solver?

Thanks to Roger Peng and Peter Dalgaard who pointed to me the function "uniroot" which is what I am looking for. 
I am grateful for the trick by Ravi Varadhan who directly lead me to using "optim" for solving the nonlinear equation by minimizing the square of the function.
 
Zhu Wang
 
Statistical Science Department
SMU

	-----Original Message----- 
	From: Roger Peng [mailto:rpeng at stat.ucla.edu] 
	Sent: Mon 4/21/2003 12:24 PM 
	To: Wang, Zhu 
	Cc: r-help at stat.math.ethz.ch 
	Subject: Re: [R] nonlinear equation solver?