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Math Help - Another complicated integral

  1. #1
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    Another complicated integral

    I got a couple of integrals that I just can't seem to work out.

    \int\frac{ln t}{e^4^t}dt

    \int\frac{ln t}{te^4^t}dt

    I've tried integration by parts but it keeps going round and round. Can anyone help me here?

    Thanks
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  2. #2
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    Re: Another complicated integral

    Quote Originally Posted by fractal5 View Post
    I got a couple of integrals that I just can't seem to work out.

    \int\frac{ln t}{e^4^t}dt

    \int\frac{ln t}{te^4^t}dt
    You can find help on the web.
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  3. #3
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    Re: Another complicated integral

    Neither have closed form solutions, so unless you know about Exponential Integrals, Hypergeometric functions and the Gamma Function, I would advise looking for a series solution to these.
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  4. #4
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    Re: Another complicated integral

    Yeah that doesn't make sense. We wouldn't be asked to solve integrals of this form. I must've made some mistake the in the steps to obtain the integrals. But anyway, thanks for the help, and thanks for that link. Will be handy in the future.
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