Solving xlnx = c + dx w/ Lambert's W Func.

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Homework Help Overview

The discussion revolves around solving the equation xlnx = c + dx, with a focus on the potential application of Lambert's W function in the solution process.

Discussion Character

  • Exploratory, Mathematical reasoning

Approaches and Questions Raised

  • The original poster inquires about the feasibility of using Lambert's W function for the equation. Another participant confirms this possibility and provides initial steps in the solution process, prompting further exploration.

Discussion Status

The conversation is ongoing, with one participant offering initial steps towards a solution and inviting others to continue the reasoning. There is no explicit consensus yet, but a direction for further exploration has been established.

Contextual Notes

There is a lack of detailed context regarding the values of c and d, as well as any constraints or specific conditions under which the equation is being solved.

kayhm
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Homework Statement



Can I solve for xlnx = c + dx using Lambert's W function?

Homework Equations





The Attempt at a Solution

 
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kayhm said:

Homework Statement



Can I solve for xlnx = c + dx using Lambert's W function?

Homework Equations





The Attempt at a Solution


Yes you can.

I've given the first three steps... after that, it shouldn't be too hard to finish:

x log(x) = c + d x

log(x) = \frac{c}{x} + d

log\left(\frac{cx}{c}\right) = \frac{c}{x} + d

log(c) + log\left(\frac{x}{c}\right) = \frac{c}{x} + d

Can you continue?
 
Thanks so much.
 
kayhm said:
Thanks so much.

It's no problem at all.
 

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