Re: Rearrange equation
- To: mathgroup at smc.vnet.net
- Subject: [mg111586] Re: Rearrange equation
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Fri, 6 Aug 2010 06:57:50 -0400 (EDT)
I believe that you will have to use numeric techniques
Manipulate[
FindRoot[
G == (Erfc[x]*(\[Mu] - Log[x]))/(2*Sqrt[2]*\[Sigma]),
{x, 1}] // Chop,
{{\[Mu], 0}, 0, 2.25, Appearance -> "Labeled"},
{{\[Sigma], 1}, .1, 5, Appearance -> "Labeled"},
{{G, 0}, 0, 4, Appearance -> "Labeled"}]
Bob Hanlon
---- Tonja Krueger <tonja.krueger at web.de> wrote:
=============
I want to rearrange the equation below so that it would look like:
x-> ....
I tried:
Solve[G==-(Sqrt[\[Pi]/2]*Erfc[x]*(-\[Mu]+Log[x]))/(2*Sqrt[\[Pi]]*\[Sigma]),x]
But then I got the error message:
Solve::tdep: The equations appear to involve the variables to be solved for in an essentially non-algebraic way.
Is there a way to solve the equation?
Thanks Tonja