System-Defined+Class+Methods+&+The+Math+Class+Library

=**__**__System-Defined Class Methods (pg 271-272)__**__**=

System-defined class methods are built into the **System** namespace. Use the scope resolution operator

Syntax: System:://Class_name//:://Method_name//

Common examples of classes in the **System** namespace are **Int32**, **Convert**, and the **Math** classes.

=__The System::Math Class Library (pg 272)__=

Collection of methods related to mathematical functions

Examples:

Trigonometric funtions (**Math::Sin**, **Math::Cos**, **Math::Tan**)
 * Math::Sqrt** - Used to calculate the square root of a number
 * Math::Pow** - Used to raise a number to a power
 * Math::Log** - To find the logarithm of a number
 * Math::PI** - returns constant value of pi (3.14159265358979323846264338327950288...)