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## 34 Object Oriented Programming

Octave has the ability to create user-defined classes—including the capabilities of operator and function overloading. Classes can protect internal properties so that they may not be altered accidentally which facilitates data encapsulation. In addition, rules can be created to address the issue of class precedence in mixed class operations.

This chapter discusses the means of constructing a user class, how to query and set the properties of a class, and how to overload operators and functions. Throughout this chapter real code examples are given using a class designed for polynomials.