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Question Number 25278 by Tinkutara last updated on 07/Dec/17

Find the number of solutions of  log∣x∣ = e^x

$${Find}\:{the}\:{number}\:{of}\:{solutions}\:{of} \\ $$$$\mathrm{log}\mid{x}\mid\:=\:{e}^{{x}} \\ $$

Commented by Tinkutara last updated on 08/Dec/17

Can it be solved using Lambert′s W  function?  Please tell mrW1 Sir.

$${Can}\:{it}\:{be}\:{solved}\:{using}\:{Lambert}'{s}\:{W} \\ $$$${function}? \\ $$$${Please}\:{tell}\:{mrW}\mathrm{1}\:{Sir}. \\ $$

Commented by mrW1 last updated on 08/Dec/17

To find how many solutions we can  have a look at the graph.

$${To}\:{find}\:{how}\:{many}\:{solutions}\:{we}\:{can} \\ $$$${have}\:{a}\:{look}\:{at}\:{the}\:{graph}. \\ $$

Commented by mrW1 last updated on 08/Dec/17

Commented by Tinkutara last updated on 08/Dec/17

Yes I did that.  But I am interested in finding the  values of x using Lambert′s W function.

$${Yes}\:{I}\:{did}\:{that}. \\ $$$${But}\:{I}\:{am}\:{interested}\:{in}\:{finding}\:{the} \\ $$$${values}\:{of}\:{x}\:{using}\:{Lambert}'{s}\:{W}\:{function}. \\ $$

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