Newton-Raphson iteration


An iterative algorithm for solving equations. Given an equation,

 f x = 0

and an initial approximation, x(0), a better approximation is given by:

 x(i+1) = x(i) - f(x(i)) / f'(x(i))

where f'(x) is the first derivative of f, df/dx.

Newton-Raphson iteration is an example of an anytime algorithm in that each approximation is no worse than the previous one.

Last updated: 2007-06-19

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New TestamentNewtonNewton-Raphson iterationNewton's methodNewWave

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