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Math Help - does a closed form inverse exist?

  1. #1
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    does a closed form inverse exist?

    Does a closed form inverse to: F(x)=1-exp(-ax)-ax*exp(-ax) exist?
    I'm having trouble finding one.
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  2. #2
    Moo
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    Hello,

    No, there isn't. But it looks like a lot the cumulative density function of an exponential distribution. If it is, it's incorrect
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