Indexing, The Basic Idea
Motivation: When there is a large number of similar things that must be referenced and manipulated, it can be inconvenient to think up a unique name for each, and to refer to them by the name
- For example: Each day in May could have been given a different name, but these would be hard to remember and inconvenient to use
Indexing names the items by associating a base name and a number -- the index -- with each one
Computer notation: May(5)