[R] Solve equation using R

Daniel Malter daniel at umd.edu
Thu Feb 18 07:17:40 CET 2010


Exact to the degree that real numbers can be exactly expressed. Look into

?uniroot

You want to specify the function in a one-sided way, i.e., x/(1-exp(-x))-2.2

HTH,
Daniel

-------------------------
cuncta stricte discussurus
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-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
Behalf Of pinusan
Sent: Wednesday, February 17, 2010 8:16 PM
To: r-help at r-project.org
Subject: [R] Solve equation using R


Hello!
I want to use R to calculate the variable x which is in some eqation, give
an example: 

2.2=x/(1-exp(-x)), 

how to solve equation to get the exact x in R? 

Thank you.

Have  a nice day.
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