Creating and Calling a Method


def greeting
  puts "Hello, pilgrim."
end

# As you already know, you call a method simply by giving its name:

greeting

1.	A simple definition for a method named hello, created with the keywords def and end
2.	define methods that have arguments
3.	You can a function with or without parenthesis
4.	Call a function for a parameter with or without parenthesis
5.	You can call another function based on the return from this funtion call
6.	method with ?
7.	Define a method to convert Cartesian (x,y) coordinates to Polar
8.	Add a new method by add method to Class

Creating and Calling a Method : Method Creation « Method « Ruby