Chapter 1, Introduction to the Ruby Programming Language, gives a high-level view of the Ruby programming language, how to install it on your system, and getting it up and running so you can start building Ruby programs.
Chapter 2, Ruby Variables, teaches you how to work with variables in Ruby to store data and use the data throughout a program, because Ruby variables are the building blocks of just about every Ruby program.
Chapter 3, Ruby Strings, teaches about the Ruby string data type and walks you through how to integrate string data into a Ruby program. Working with words, sentences, and paragraphs are common requirements in many applications.
Chapter 4, Working with Numbers in Ruby, explains how to work with different ...
