# Definition:Root

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## Disambiguation

This page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.

**Root** may refer to:

- Root (Analysis): If $y^m = x$ then $x = \sqrt[m] y$, and $x$ is the
**$m$th root**of $y$.

- Root of a polynomial: the
**roots**of a polynomial $f$ are the values of $x$ for which $f \left({x}\right) = 0$.

- Root of a mapping (or function): The
**roots**of a mapping $f$ are the values of $x$ for which $f \left({x}\right) = 0$.

- Root Node: A rooted tree is a tree which has a particular node distinguished from the others and called the
**root node**, or just**root**.

- Root of a propositional tableau: The
**root**of a propositional tableau $T$ is its hypothesis set $\mathbf H$, which is considered to be attached to the root node of $T$.