Definition:Root


 * 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 function: The roots of a function $$f$$ 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.