#include <stdio.h>

#define LOW (-1.0)
#define HIGH 1.0
#define STEP 0.001

double pol1(x)
double x;

{
    return(x*x - 2);
}

double pol2(x)
double x;
{
    return(x*x*x - 2*x + 5);
}
void tabulate(low, high, step, f) double low, high, step, (*f)();
{
    double x;
    for (x=low; x<=high; x+=step)
        printf("%13.5f %20.10f \n", x, (*f)(x));
}

main()
{
    int i;
    double x, (*fp)();
   	for (i=0; i<2; i++) {
        if (i==0) fp = pol1;
        else fp = pol2;
        tabulate(LOW, HIGH, STEP, fp);
 	}
 }