Newton's method (or the Newton-Raphson method) is an iterative numerical technique used to find successively better approximations to the roots (or zeroes) of a real-valued function. In optimization, it is often used to find the local maxima and minima of functions. ### Principle of Newton's Method in Optimization The method employs the first and second derivatives of a function to find critical points where the function's gradient (or derivative) is zero.
