Find the solution of this ln equation

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SUMMARY

The discussion focuses on solving the equation ax = ln(x). The user attempted to manipulate the equation by exponentiating both sides, resulting in e^(ax) - x = 0. They considered using a Taylor series for ln(x) but recognized that ln(0) is undefined. The consensus suggests employing numerical methods, specifically the Newton-Raphson method, to find solutions, which may yield two solutions under certain conditions.

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transgalactic
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find the solution of this ln equation:
ax=lnx

i tried:
[tex] e^{(ax)}=x[/tex]
[tex] e^{(ax)}-x=0[/tex]

what to do next??
i thought of building a taylor series around 0 for ln
but ln(0) is undefined

??
 
Last edited:
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I'm not entirely sure, but I think such equations must be solved with a numerical method, such as Newton-Rhapson.
 
When there is any solution there are two I think.
 

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