Comprehensive Ruby Programming

Integer arithmetic guide

Being able to compute mathematical equations in a program is a critical task for most programs in some form or another. In this section, we are going to see how to use integer arithmetic in Ruby.

Performing addition is as simple as a script like this:

p 5+5 

The same applies to subtraction, multiplication, and division. If you want to use exponents, you can use two asterisk symbols, like the following example, where the first 5 is the base integer and the second 5 is the exponent.

p 5**5 

The following is the list of arithmetic functions to use in a Ruby program:

• +: This is used for addition
• -: This is used for subtraction
• /: This is used for division
• *: This is used for multiplication
• **: This is used for exponents ...