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B Help rearranging.

  1. Jul 22, 2016 #1
    Hi guys, Iv been stuck on this for well over an hour now, so I decided to use a equation rearranger online. However it gave me this, I just wanted to know what the value of 'W' is and how they got to that answer. Thanks in advance. ImageUploadedByPhysics Forums1469187657.046383.jpg
  2. jcsd
  3. Jul 22, 2016 #2


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    2017 Award

    Staff: Mentor

    It is not a value, it is the Lambert W function. It is not a proper solution to the problem (there is no proper solution) - the function is defined to have the solution to a similar problem as its value, but there is no analytic way to evaluate it in general.

    WolframAlpha should have included a link to the function definition.
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