Newton-Raphson formula

Newton-Raphson formula

[′nüt·ən ′raf·sən ‚fȯr·myə·lə]
(mathematics)
If c is an approximate value of a root of the equation ƒ(x) = 0, then a better approximation is the number c- [ƒ(c)/ƒ′(c)].
References in periodicals archive ?
Our initial guess was 3, and the Newton-Raphson formula gave us a better estimate #1 of 3.