payment page
-
Base
a is the base of the exponential expression ax. a is also the base of the logarithmic expression logax.
-
Common Logarithmic Function
The logarithmic function f (x) = log10x.
-
Exponent
x is the exponent in the exponential expression ax. It means a is multiplied by itself x times.
-
Exponential Function
A function of the form f (x) = ax, where a > 0, a≠1, and x is any real number
-
Half-life
The time it takes for a exponentially decaying substance to lose half its mass.
-
Logarithm
An expression of the form logax. If logax = b, ab = x.
-
Logarithmic Function
A function of the form y = logax where x = ay, a > 0, and a≠1. This example is a logarithmic function with base a.
-
Natural Exponential Function
The function f (x) = ex.
-
Natural Logarithmic Function
The logarithmic function f (x) = logex = ln x.
Terms
Formulae
| Change of Base | logax =  , where a, b, and x are all positive
real numbers and a, b≠1.
|
Did you know you can highlight text to take a note?
x
