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

float Func(float x)
{
    return x - sin(x);
}
float dFunc(float x)
{
    return 1 - cos(x);
}

float solve(float x, float e)
{
    float x0;
    int i = 0;
    printf("%i x: %f\n", i, x);
    do
    {
        i++;
        x0 = x;
        x = x0 - (Func(x)/dFunc(x));
        printf("%i x: %f\n", i, x);
    }
    while(fabs(x-x0) > .1*e);
    return x;
}

int main() {
    float root, x0;
    float e;

    printf("Enter precision");
    scanf("%f", &e);
    printf("\n");
    printf("Enter x0: ");
    scanf("%f", &x0);
    printf("\n");

    printf("e = %f, x0 = %f\n", e, x0);

    root = solve(x0, e);
    return 0;
}