# 21. Glossary Terms

- Monomial
- Monomials
An expression that multplies and divides numbers and letters with no + or - signs. Examples: \(x^2\), \(a b\), \(3 a y\), \(2.2 x / (a b y)\).

- Binomial
- Binomials
A sum or subtraction of two monomials. Examples: \(x^2 - x\), \(x^2 - x\), \(x^2 - 4\), \(1 + a\), \(a + b\), \(a^2 - b^2\), \(b + x^7\), \(c + 1\), \(a x^m + b x^n\), \(0.9x^{3}+\pi y^{2}\).

- Factoring
Factoring of an integer is to write it as a product of smaller numbers. Factoring of a polynomial is to write it as a product of smaller polynomials.

- RST
reStructured Text is an easy-to-read, what-you-see-is-what-you-get plaintext markup syntax and parser system. It is useful for in-line program documentation (such as Python docstrings), for quickly creating simple web pages, and for standalone documents. reStructured Text is designed for extensibility for specific application domains. The reStructured Text parser is a component of Docutils.

- Sphinx
Sphinx is a tool that makes it easy to create intelligent and beautiful documentation. It was originally created for the Python documentation, and it has excellent facilities for the documentation of software projects in a range of languages.