Math Question

BlkbrryTheGreat · Post by **BlkbrryTheGreat** » 2003-01-18 07:02pm

What is Log, Natural Log, and Anti-Log? How do you use them? How do you use them in relation to one another?

If somone could answer these question for me I would really appreciate it.

kheegster · Post by **kheegster** » 2003-01-18 07:12pm

If you have a number b that is related to a by:

b = a^c,

then LOGa b = c, i.e. the log of b to the base a equals c.

e.g.

1000 = 10^3,

then

LOG10 1000 = 3.

Natural log is the log to the base of a special number, 2.718281828...., which is very important in mathematics and science, but the significance will only be clear once you learn more advanced math.

Antilog is merely the opposite process of a log.

Post by **Colonel Olrik** » 2003-01-18 07:12pm

Do a google search.

Basically, if you have an equation a^x = b, variable x and a,b > 0, then the solution is given by x = loga(b).

a is the logarithmic base, and is commonly base 10 or base e (natural).

There is a lot more to say, though. It's better to read it in a book.