Newton+method 源代码

module INTERPOLATE_UTILITY use sgl implicit none type point real x,y end type real, parameter :: PI=3.14159 …

#include #include #define N 100 #define EPS 1e-6 #define ETA 1e-8 void main() { float f(float); float f1(float); flo…

#include #include #define N 100 #define EPS 1e-6 #define ETA 1e-8 void main() { float f(float); float f1(float); flo…

%-----------Newton法求解-------------% function Newton = Newton(x0,region,N) eps = 1/10^6; x = x0; hessen = eye(N); while(dist(g…

%------------运用牛顿法求最优---------------% function run disp('函数式为　　f(x1,x2)= 100*(x1^2-x2)+(1-x1)^2') Newton([0 0],[-5,5],2)

#include #include #include int Function(double,double *,double *); int Newton(double *,double,int); int Function(x,f,d…

//该程序为Newton法解方程f(x)=0的通用程序 # include # include double F1 (double x)//定义原函数 { return ();//()括号内应写入原函数算法 } double F2 (dou…

# include # include double F1 (double x)//定义原函数 { return (x*x*x/3-x); } double F2 (double x)//原函数一阶导 { return (x*x-1);…

# include # include double F1 (double x)//定义原函数 { return (x*x*x/3-x); } double F2 (double x)//原函数一阶导 { return (x*x-1);…

function [x,step]=newton2(x0,n) x(1)=x0; b=1; i=1; while (abs(b)>eps*x(i)) x(i+1)=x(i)-f1(x(i))*(x(i)-x(i-1))/(f1(x(i))-f1…