Section 4.5: Logarithmic Functions Links (Click on the underlined link for extra practice with the topic.) Definition of Logarithm This site begins with the definition of logarithm, and then discusses the laws of logarithms (© 2002-2007 by Stan Brown, Oak Road Systems): http://oakroadsystems.com/math/loglaws.htm#WhatIs Practice with Logarithms Here we practice with the definition of logarithms (©  2002, WTAMU and Kim Peppard): http://www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebra/col_alg_tut43_logfun.htm Logarithmic Function This presents a nice discussion of logarithmic functions, including an interactive link: http://www.analyzemath.com/logfunction/logfunction.html Exponential and Logarithmic Functions as Inverse Functions http://www.sosmath.com/algebra/logs/log4/log4.html Properties of Logarithmic Functions Take the time to read through all the material on this site (© 1999 Stefan Waner and Steven R. Costenoble): http://www.zweigmedia.com/RealWorld/calctopic1/logs.html Jhone Neper This site refers to Jhone as John Napier (JOC/EFR © April 1998): http://www-history.mcs.st-andrews.ac.uk/Biographies/Napier.html < Back to Section 5