Date: Wed, 2 Nov 94 14:57:48 EST From: Anonymous Subject: Logarithms Can you explain exactly what a logarithm is? Thanks, I love this Dr. Math resource, I can see it's going to be very helpful.
From: Dr. Ethan Subject: Re: Logarithms Date: Wed, 2 Nov 1994 15:35:50 -0500 (EST) Hi, I'm not sure how in depth you want me to go. If this is too basic, write back for more. I think the easiest way to think about a logarithm is to think "A logarithm is an exponent." Or another way to say this is: y is a logarithm if it solves an equation of the form a = b ^y (That means a equals b to the y power) An applied way to understand a logarithm is as the inverse of a growth curve. Let's say you have a growth curve (Population) = (growthfactor) ^(time) This equation takes time and gives you the population at that time. If you wanted to know when the population is a certain size that equation would be Log base (growthfactor) of (population) = time That equation didn't come out too well; I hope you can figure that out. If you want information about calculating with logarithms or these ideas haven't helped your intuition, then write back and maybe someone else will have more things to say. Ethan Doctor on Call
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