fork download
copy 
  1. /**
  2.  
  3.  * Write a description of class quadraticformula here.
  4.  * 
  5.  * @author (??) 
  6.  * @[member='versions'] (8/21/15)
  7.  */
  8. import java.util.Scanner;
  9. import java.util.*;
  10. public class Main {
  11.     public static double handleradicand(double a, double b, double c){ //Step one, calculate the radicand(the part inside the square root)
  12.         double radicand = b * b - (4 * a * c); // b squared minus 4ac
  13.         return radicand; //return the radicand
  14.     }
  15.     public static double rootradicand(double rad, double e){ //find the square root of the radical
  16.         double radical = Math.sqrt(rad); // square root of b squared minus 4ac
  17.         return radical; //return the radical
  18.     }
  19.     public static double divideBby2a(double b, double a) { //finding  -b over 2a and the square root over 2a and storing them in seperate variables.
  20.         double zerominusb = 0 - b; //storing -b as a variable because I wasn't sure if I could just type -b in a calculation
  21.         double bover2a = zerominusb / (2 * a); //-b over 2a
  22.         return bover2a;
  23.     }
  24.     public static double divideRADby2a(double rad, double a){
  25.         double radover2a = rad / (2 * a); // the radical over 2a
  26.         return radover2a;
  27.     }
  28.     public static double findroot1(double BO2A, double RO2A){ //find the roots of the equation
  29.         double first_X = BO2A + RO2A; // -b over 2a plus the radical over 2a
  30.         return first_X; //return the first root
  31.     }
  32.     public static double findroot2(double BO2A, double RO2A){
  33.         double second_X = BO2A - RO2A;
  34.         return second_X;
  35.     }
  36.     public static void main(String[] args){ //execute the previously defined methods to calculate the quadratic equation.
  37.         System.out.println("What is the A value?"); //Asking the user for the A value in their quadratic equation.
  38.         Scanner Ascanner = new Scanner(System.in); //Created a new scanner variable for the A value.
  39.         double a = Ascanner.nextInt(); //Storing the next integer of that scanner variable for an Integer of the A value.
  40.         System.out.println("What is the B value?"); //Asking the user for the B value in their quadratic equation.
  41.         double b = Ascanner.nextInt(); //Storing the next integer of that scanner variable for an Integer for the B value.
  42.         System.out.println("What is the C value?"); //Asking the user for the C value in their quadratic equation.
  43.         double c = Ascanner.nextInt(); //Storing the next integer of that scanner variable for an Integer of the C value.
  44.         //Finding the radicand
  45.         double tem1 = handleradicand(a,b,c);
  46.          System.out.println("radicand" + tem1);
  47.         //Finding the radical
  48.         double tem2 = rootradicand(tem1, .5);
  49.         System.out.println("radical" + tem2);
  50.         double tem3 = divideBby2a (b,a);
  51.         double tem4 = divideRADby2a (tem2, a);
  52.         double firstX = findroot1 (tem3, tem4);
  53.         double secondX = findroot2 (tem3, tem4);
  54.         System.out.println("Your roots are X = " + firstX + "and X = " + secondX); //displaying the roots
  55.     }
  56. }
Success #stdin #stdout 0.14s 321344KB
comments (?)
stdin
copy 
1
3
2
stdout
copy 
What is the A value?
What is the B value?
What is the C value?
radicand1.0
radical1.0
Your roots are X = -1.0and X = -2.0
https://ideone.com/UvmqJC
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!