



It
might be a good time to review the rules for dealing with logs and
exponents ...












A couple
of notes on logs. "Base 10" logs can be written as: 





log_{10}a
or just log a






We can
change the base of a log or exponent, using the formula: 











"e"
is such a special case in exponent type equations, 


it's no
big surprise that it has it's own log notation ... 


And even
a special name, it's called ln (pronounced elen) 





log_{e}a
= ln a






copyright 2005 Bruce Kirkpatrick 
