Rational Function

analysis

Definition

Rational Function

A function $f:D\to \mathbb{R}$ of form $f(x)=\frac{p(x)}{q(x)}$, where $p(x)$ and $q(x)$ are polynomial function, and $D=\mathbb{R}\setminus \{x\in \mathbb{R}\mid q(x)=0\}$.