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In-Lambert-W-Function-How-would-i-simplify-x-W-ln-4-8-ln-4-To-get-the-values-




Question Number 39689 by Cheyboy last updated on 09/Jul/18
In Lambert W Function    How would i simplify    x = − ((W(((−ln(4))/8)))/(ln(4)))  To get the values
$${In}\:{Lambert}\:{W}\:{Function} \\ $$$$ \\ $$$${How}\:{would}\:{i}\:{simplify} \\ $$$$ \\ $$$${x}\:=\:−\:\frac{{W}\left(\frac{−{ln}\left(\mathrm{4}\right)}{\mathrm{8}}\right)}{{ln}\left(\mathrm{4}\right)} \\ $$$${To}\:{get}\:{the}\:{values} \\ $$$$ \\ $$
Commented by MrW3 last updated on 09/Jul/18
You can not really simplify further.  Certainly you can write  x = − ((W(((−ln(2))/4)))/(2 ln(2)))  but this doesn′t really help you.  To get the values of x, you just need  to determine W(−((ln 2)/4)) which is  −0.2148 or −2.7726.   ⇒x=−((−0.2148)/(2 ln 2))=0.1549 or  ⇒x=−((−2.7726)/(2 ln 2))=2  If you have luck, you may find an  online calculator for Lambert function.
$${You}\:{can}\:{not}\:{really}\:{simplify}\:{further}. \\ $$$${Certainly}\:{you}\:{can}\:{write} \\ $$$${x}\:=\:−\:\frac{{W}\left(\frac{−{ln}\left(\mathrm{2}\right)}{\mathrm{4}}\right)}{\mathrm{2}\:{ln}\left(\mathrm{2}\right)} \\ $$$${but}\:{this}\:{doesn}'{t}\:{really}\:{help}\:{you}. \\ $$$${To}\:{get}\:{the}\:{values}\:{of}\:{x},\:{you}\:{just}\:{need} \\ $$$${to}\:{determine}\:{W}\left(−\frac{\mathrm{ln}\:\mathrm{2}}{\mathrm{4}}\right)\:{which}\:{is} \\ $$$$−\mathrm{0}.\mathrm{2148}\:{or}\:−\mathrm{2}.\mathrm{7726}.\: \\ $$$$\Rightarrow{x}=−\frac{−\mathrm{0}.\mathrm{2148}}{\mathrm{2}\:\mathrm{ln}\:\mathrm{2}}=\mathrm{0}.\mathrm{1549}\:{or} \\ $$$$\Rightarrow{x}=−\frac{−\mathrm{2}.\mathrm{7726}}{\mathrm{2}\:\mathrm{ln}\:\mathrm{2}}=\mathrm{2} \\ $$$${If}\:{you}\:{have}\:{luck},\:{you}\:{may}\:{find}\:{an} \\ $$$${online}\:{calculator}\:{for}\:{Lambert}\:{function}. \\ $$
Commented by Cheyboy last updated on 09/Jul/18
Thank you sir, I though their is  a way to simplify further..  I will try an see whether i can  access it
$${Thank}\:{you}\:{sir},\:{I}\:{though}\:{their}\:{is} \\ $$$${a}\:{way}\:{to}\:{simplify}\:{further}.. \\ $$$${I}\:{will}\:{try}\:{an}\:{see}\:{whether}\:{i}\:{can} \\ $$$${access}\:{it} \\ $$$$ \\ $$$$ \\ $$$$ \\ $$
Answered by Cheyboy last updated on 09/Jul/18
Sir W3 ur help is needed cuz you  usually attept related question
$${Sir}\:{W}\mathrm{3}\:{ur}\:{help}\:{is}\:{needed}\:{cuz}\:{you} \\ $$$${usually}\:{attept}\:{related}\:{question} \\ $$

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