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Logarithms and decibels

  1. Apr 25, 2007 #1
    logarithms and decibels plz

    Hi i need some good tutorials for the logarithmsI(especialy for logarithms with base 2)
    and how i can calculate logarithms with base 2 when i have a simple calculator.
    Also i need some decibel tutorials that can help me understand how i can perform calculations using decibels
  2. jcsd
  3. Apr 27, 2007 #2
    any kind of help plz?
  4. Apr 27, 2007 #3


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    Staff: Mentor

    I did a google search on "logarithm tutorial" and got lots of good-looking hits. Do any of those help? (Just re-do the search, and include the quotes.)
  5. Apr 27, 2007 #4


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    Science Advisor
    Homework Helper

    Ok, I don't know about tutorials but log_a(x)=log_e(x)/log_e(a). If you don't like e you can substitute 10.
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