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

double versiera(double x) {
    return 1.0 / (1.0 + x * x);
}

double lemniscate_value(double x) {
    return sqrt(sqrt(1.0 + 4.0 * x * x) - x * x - 1.0);
}

int lemniscate_exists(double x) {
    int res = 1;
    double value = sqrt(1.0 + 4.0 * x * x) - x * x - 1.0;

    if (value < 0.0) {
        res = 0;
    }

    return res;
}

double hyperbola(double x) {
    return 1.0 / (x * x);
}

int hyperbola_exists(double x) {
    int res = 1;

    if (x == 0.0) {
        res = 0;
    }

    return res;
}

int main(void) {
    const double pi = 3.14159265358979323846;
    const int count = 42;
    double x;
    double step;
    int i = 0;

    step = 2.0 * pi / (count - 1);

    while (i < count) {
        x = -pi + step * i;

        printf("%.7lf | %.7lf | ", x, versiera(x));

        if (lemniscate_exists(x)) {
            printf("%.7lf", lemniscate_value(x));
        } else {
            printf("-");
        }

        printf(" | ");

        if (hyperbola_exists(x)) {
            printf("%.7lf", hyperbola(x));
        } else {
            printf("-");
        }

        if (i != count - 1) {
            printf("\n");
        }

        i++;
    }

    return 0;
}