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Thread: x^x=Q

  1. June 18th 2006, 02:14 PM #1
    dan
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    x^x=Q

    Hey’
    I am trying to solve for x in x^x=Q were Q is a constant. I’ve tried a lot of different things with algebra, but I think that it may need calculus. can somebody help???
    Thanks,
    dan
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  2. June 18th 2006, 02:27 PM #2
    ThePerfectHacker
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    Look here,
    http://en.wikipedia.org/wiki/Lambert_W_function
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  3. June 21st 2006, 04:49 PM #3
    dan
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    x^x=Q

    I've used the W(Q) furmula but the problem is that if I want to get a real value for x I need to be able to solve for w in Q=w e^w I don't know if there is anther way. or if is really posible to get a real number for x in x=LN(Q)/W(LN(Q))
    thanks,
    dan
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