task22

#define _USE_MATH_DEFINES
#include <math.h>
#include <stdio.h>

double F(double x){
    return ( sin(x)-x+1 );
}

int main(){
    double eps = 0.00001;
    double a = M_PI/2, b = M_PI;
    double dx = b - a;
    double x = dx / 2;
    int count = 0;
    while ( abs( F(x) ) > eps ){
        dx = dx / 2;
        x = a + dx;
        if ( F(x)*F(b) < 0 )
            a = x;
        else
            b = x;
    }
    printf("Answer: %f", x);
}