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MathGroup Archive 2003

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Re: Log Equation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg44769] Re: Log Equation
  • From: "Steve Luttrell" <luttrell at _removemefirst_westmal.demon.co.uk>
  • Date: Tue, 25 Nov 2003 00:45:38 -0500 (EST)
  • References: <bps4gf$9uj$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Mathematica 5 gives the following:

In[2]:=
Solve[y == (1 - x)/Log[x], x]

Out[2]=
{{x -> y*ProductLog[E^(1/y)/y]}}

--
Steve Luttrell
West Malvern, UK

"Bernard Bourée" <bernard at bouree.net> wrote in message
news:bps4gf$9uj$1 at smc.vnet.net...
> I 'm trying to find a way to solve the equation
>
> y = (1-x)/ Log(x)
>
> How can I find x when y is known ?
>
> Is there a numerical method ?
> with series development?
>
> --
> Bernard Bourée
> bernard at bouree.net
>
>



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