Program for Newton Raphson Method | Java program for implementation of Newton Raphson Method for solving equations ; An example function whose solution is determined using Bisection Method . The function is x ^ 3 - x ^ 2 + 2 ; Derivative of the above function which is 3 * x ^ x - 2 * x ; Function to find the root ; x ( i + 1 ) = x ( i ) - f ( x ) / f '(x) ; Driver code ; Initial values assumed
class GFG { static final double EPSILON = 0.001 ; static double func ( double x ) { return x * x * x - x * x + 2 ; } static double derivFunc ( double x ) { return 3 * x * x - 2 * x ; } static void newtonRaphson ( double x ) { double h = func ( x ) / derivFunc ( x ) ; while ( Math . abs ( h ) >= EPSILON ) { h = func ( x ) / derivFunc ( x ) ; x = x - h ; } System . out . print ( " The ▁ value ▁ of ▁ the " + " ▁ root ▁ is ▁ : ▁ " + Math . round ( x * 100.0 ) / 100.0 ) ; } public static void main ( String [ ] args ) { double x0 = - 20 ; newtonRaphson ( x0 ) ; } }