nth root

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• nth root — In mathematics, the nth root of a number x is a number r which, when raised to the power of n, equals x rn = x, where n is the degree of the root. A root of degree 2 is usually called a square root and a root of degree 3, a cube root. For example …   Wikipedia

• Nth root — In mathematics, an n th root of a number a is a number b such that bn = a . When referring to the n th root of a real number a it is assumed that what is desired is the principal n th root of the number, which is denoted sqrt [n] {a} using the… …   Wikipedia

• nth root algorithm — The principal nth root of a positive real number A, is the positive real solution of the equation xn = A (for integer n there are n distinct complex solutions to this equation if A > 0, but only one is positive and real). There is a very fast… …   Wikipedia

• Nth root algorithm — The principal n th root sqrt [n] {A} of a positive real number A , is the positive real solution of the equation:x^n = A(for integer n there are n distinct complex solutions to this equation if A > 0, but only one is positive and real).There is a …   Wikipedia

• Shifting nth-root algorithm — The shifting nth root algorithm is an algorithm for extracting the n th root of a positive real number which proceeds iteratively by shifting in n digits of the radicand, starting with the most significant, and produces one digit of the root on… …   Wikipedia

• Root of unity — The 5th roots of unity in the complex plane In mathematics, a root of unity, or de Moivre number, is any complex number that equals 1 when raised to some integer power n. Roots of unity are used in many branches of mathematics, and are especially …   Wikipedia

• root — root1 rootlike, adj. /rooht, root/, n. 1. a part of the body of a plant that develops, typically, from the radicle and grows downward into the soil, anchoring the plant and absorbing nutriment and moisture. 2. a similar organ developed from some… …   Universalium

• Root — /rooht/, n. 1. Elihu /el euh hyooh /, 1845 1937, U.S. lawyer and statesman: Nobel peace prize 1912. 2. John Wellborn /wel beuhrn/, 1851 91, U.S. architect. * * * In botany, the underground anchoring part of a plant. It grows downward in response… …   Universalium

• Root (disambiguation) — A root is the part of a plant that is below ground. Root or Roots may also refer to: Contents 1 Computing 2 Geography 2.1 Switzerland …   Wikipedia

• Root (mathematics) — This article is about the zeros of a function, which should not be confused with the value at zero. You may also want information on the Nth roots of numbers instead. In mathematics, a root (or a zero) of a complex valued function f is a member x …   Wikipedia

• Root-finding algorithm — A root finding algorithm is a numerical method, or algorithm, for finding a value x such that f(x) = 0, for a given function f. Such an x is called a root of the function f. This article is concerned with finding scalar, real or complex roots,… …   Wikipedia