Introduction to Logarithms

Video on this page courtesy of The University of Western Australia.
http://www.uwa.edu.au/

Logarithm Defined:

23 = 8
“The base of 2 raised to the power of 3 gives the number 8.”
log8
“What power of the base 2 gives us the number 8?”

Logarithm Sample Problem:

log3 9 = ?
“What power of 3 produces 9”
In other words, how many times do I have to multiply 3 by itself to produce 9?
The answer is 2 because 3*3=9 or 32 = 9

Introduction to Logarithms (Mathematics Video Tutorial)

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