Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What is the term for the argument in a logarithm function?

  1. Oct 6, 2011 #1
    If I have log a b = c, what is the term for the value b? I know that a is the base and c is the exponent, but I can't think of what b is called! While I am at it, in ab = c, what exactly is c called? The power? Would that make b from the previous example the power as well? I have a feeling that it is not called power since power is sometimes used for exponent.
  2. jcsd
  3. Oct 7, 2011 #2
    Here, let me google that for you:

    http://www.themathpage.com/alg/logarithms.htm" [Broken]
    Last edited by a moderator: May 5, 2017
  4. Oct 7, 2011 #3


    User Avatar
    Science Advisor

    I don't see anywhere on that page that it answers swampwiz's question.

    Swampwiz, the only term I have ever heard used is exactly what you use- the "argument" of the logarithm.
  5. Oct 7, 2011 #4
    Hhhhmmm....oops, I guess you're right...they do mention the other two terms and their names, but not exactly that one...my mistake.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook