package Control.Control4;

import java.util.*;
import java.io.*;

class Function{
    double eval(double x){
        if (s == "square"){
            double ev = a*(x*x)+b*x+c;
            return ev;
        }
        else {
            double ev = Math.log(x)/Math.log(a);
            return ev;
        }
    }

    String show(){
        if (s == "square"){
            String l = "(" + a + ")*x^2+(" + b + ")*x+(" + c + ")";
            return l;
        }
        else {
            String l = "log_" + a + "_(x)";
            return l;
        }
    }

    private int a;
    private int b;
    private int c;
    private String s;

    public Function(int a, int b, int c, String s){
        this.a = a;
        this.b = b;
        this.c = c;
        this.s = s;
    }
}

class Square extends Function{
    public Square(int a, int b, int c){
        super(a, b, c, "square");
    }
}

class Log extends Function{
    public Log(int a){
        super(a, 0, 0, "log");
    }
}

public class Ex_1 {
    public static void main(String[] args){

    }
}