In this lesson you will learn how to evaluate expressions like:

The square root of x
The natural exponential of x
The natural logarithm of x
The sine or cosine of

Most programming languages have some built-in functions to handle these or a library that contains them. Java does as well, but it is somewhat different than other languages. It uses the Math class.
Consider the following links:
a) The Math Class
b) Example Program
c) What do you need to know
d) Math Methods
or
n) or next to Static Methods
r) or back to More on Operators
x) or out to More on Variables and Data Types