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Need something solving PROBLEM AHOY!

  1. Jul 4, 2010 #1
    Need something solving!!!! PROBLEM AHOY!

    Hi there,

    Im in dire need of a problem solving because i really cba to do it at this time of nite and need sorting by 2moz morning.... putting my faith in PF here... I dont think its too diff I just havnt done any algebra for a while and need some assistance.

    Need this rearranging for Z:

    1=-((e^ZL)+(e^Zw))

    Any help much appreciated!!!!


    Regards

    Sol
     
  2. jcsd
  3. Jul 4, 2010 #2

    mathman

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    Science Advisor

    Re: Need something solving!!!! PROBLEM AHOY!

    If L and w are arbitrary (assuming multiplying Z in the exponents) there is no closed form solution for Z.
     
  4. Jul 5, 2010 #3
    Re: Need something solving!!!! PROBLEM AHOY!

    ok mate, well is there any way i can find it if L and W arnt arbitrary?
     
  5. Jul 5, 2010 #4
    Re: Need something solving!!!! PROBLEM AHOY!

    In real numbers, the problem is immediate: no linear combination of powers of e will ever equal -1.

    In complex numbers, L = W would make things a lot simpler, but that's trivial...
     
  6. Jul 5, 2010 #5
    Re: Need something solving!!!! PROBLEM AHOY!

    Ok, well in this instance i need it solving for w = 24 and L = 3500, but i would like a general solution so i can apply any values for L and w
     
  7. Jul 5, 2010 #6
    Last edited by a moderator: Apr 25, 2017
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