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Thread: Integral of ln(x)?

  1. July 12th 2012, 08:11 AM #1
    Kvandesterren
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    Integral of ln(x)?

    What is the integral of ln(x) equal to?
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  2. July 12th 2012, 08:23 AM #2
    ebaines
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    Re: Integral of ln(x)?

    You can derive this through integrating by parts, but the answer is \int \ln (x)dx = x \ln (x) - x.
    Last edited by ebaines; July 12th 2012 at 08:25 AM.
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  3. July 12th 2012, 09:49 AM #3
    loui1410
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    Re: Integral of ln(x)?

    Yes, look at it as \int 1\cdot \ln(x) dx and integrate by parts.
    Last edited by loui1410; July 12th 2012 at 09:53 AM.
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