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Math Help - Help with Log Equation

  1. #1
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    Question Help with Log Equation

    I am having trouble figuring the steps to solving the following. Can someone please show me so I can have a visual to better understand.
    I am trying to solve for I.

    1=6-5/2log(I/Io)
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  2. #2
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    Is this your equation?

    1=6-\frac{5}{2\log\frac{I}{I_0}}
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  3. #3
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    Sorry It is 5/2. thanks for the reply.
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  4. #4
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    This one?  1=6-\frac{5}{2}\log\frac{I}{I_0}
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  5. #5
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    Yes...that is the equation I am trying to solve. I'm not sure how to go about doing so.
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  6. #6
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     1=6-\frac{5}{2}\log\frac{I}{I_0}

    \frac{5}{2}\log\frac{I}{I_0} = 5

    \log\frac{I}{I_0} = 2

    \frac{I}{I_0} = 100

    finish it.
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  7. #7
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    But skeeter, is this base 10 or base e ?
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  8. #8
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    Quote Originally Posted by pickslides View Post
    But skeeter, is this base 10 or base e ?
    looks like a sound level equation ... decibels in base 10.
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  9. #9
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    Skeeter,

    Thanks a ton sir....I see that you're a Naval Aviator. I'm a flight deck AT myself out on recruiting duty. I'm pretty sure that it is a base 10. At least the textbook explanation of common logs has it a base 10.
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  10. #10
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    It is the magnitude of a star model. I= the intensity of the star being measured.
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  11. #11
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    Quote Originally Posted by AlanL View Post
    Skeeter,

    Thanks a ton sir....I see that you're a Naval Aviator.
    retired ... haven't grabbed a yoke or pushed a rudder pedal since 1990.

    ... and yes, I do miss it.
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