#include <iostream>
#include <cmath>
using namespace std;
double funkcja(double x)
{
return (x - 2)*(x + 2);
}
double zerowe(double a, double b, double e)
{
double c;
while (b - a > e)
{
c = (a + b) / 2.0;
if (funkcja(a)*funkcja(c) < 0)
{
b = c;
}
else
{
a = c;
}
}
return c;
}
double falsi(double a, double b, double e)
{
double c;
while (b - a > e)
{
c = (a*funkcja(b) - b*funkcja(a)) / (funkcja(b) - funkcja(a));
if (funkcja(a)*funkcja(c) < 0)
{
b = c;
}
else
{
a = c;
}
}
return c;
}
int main()
{
double a, b, e;
cout << "Podaj poczatek przedzialu\n"; cin >> a;
cout << "Podaj koniec przedzialu\n"; cin >> b;
cout << "Podaj dokladnosc\n"; cin >> e;
cout << "Miejsce zerowe w punkcie ";
cout << zerowe(a, b, e) << endl;
cout << "Miejsce zerowe w punkcie ";
cout << falsi(a, b, e) << endl;
}
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