Question

On a graphing calculator, how you you graph a log with a base other than 10?

Answer 1

log(b) to the base a = log(b) to the base 10 divided by log(a) to the base 10

Answer 2

Change of basis formula? http://www.sosmath.com/algebra/logs/log4/log43/log43.html

Also, you can use http://www.wolframalpha.com to graph it. Type in "plot log base 3 of x".

Answer 3

change of base is the easiest i think:

logBASE(N) = ln(N)/ln(BASE)