How do you convert to logarithmic form

Conversion to logarithmic form works like this.

Consider the following three variables:

a = answer
b = base
e = exponent

In exponential form, the expression would appear as follows:

b^e = a

Logarithmic form would appear like this:

log b(a) = e

For example:

10^2 = 100

log 10(100) = 2