Лабораторная работа 6 / LR_6 / Main

#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include "methods.h"
#include <conio.h>
#include <iostream.h>


double delta;
void main()
  {
    clrscr();
    int k;
    long int s;
    float x11,eps1,delta1;
    double x1,eps,x;
    double F(double);
    cout<<"f(x) = x*x*x - 3*x - 2*e(deg(-x))\n\n";
    printf("Input eps: ");
    scanf("%f",&eps1);
    eps = eps1;
    printf("Input x1: ");
    scanf("%f",&x11);
    x1 = x11;
    printf("Input delta: ");
    scanf("%f",&delta1);
    delta = delta1;
    x = ITER(x1,eps,k);
    printf("x=%f    k=%d\n",x,k);
    getch();
  }
double F(double x)
  {
    extern double delta;
    double s;
    long int S;
    s = x-0.199871*(x*x*x-3*x-2*exp(-x));
    if( s/delta < 0 )
      S = s/delta - .5;
    else
      S = s/delta + .5;
      s = S*delta;
      s = Round( s,delta );
//      cout<<"   {fi(x)="<<s<<"}"<<endl;
      return(s);
  }

double F1(double x)
  {
    extern double delta;
    double s;
    long int S;
    if ((3*x*x-3+2*exp(-x))>=0) s = 1-0.199871*(3*x*x-3+2*exp(-x));
    else s = -1+0.199871*(3*x*x-3+2*exp(-x));
    if( s/delta < 0 )
      S = s/delta - .5;
    else
      S = s/delta + .5;
      s = S*delta;
      s = Round( s,delta );
//      cout<<"    {fi'(x)="<<s<<"}"<<endl;
    return(s);
  }