commit

src/App.java

+// ignore
 public class App {
     public static void main(String[] args) throws Exception {
         System.out.println("Hello, World!");

src/AppTest.java

+// the "mains"
 import static org.junit.Assert.assertEquals;
 import org.junit.Test;
 

src/Complex.java

+// work out here
 public class Complex {
 
   public double real;
@@ -27,13 +28,15 @@ public class Complex {
     return real;
   }
 
-  public double magnitude()
+  public double magnitude() // magnitude = sqrt(a^2 + b^2)
   {
+    Math.sqrt(Math.pow(this.real,2) + Math.pow(this.imag,2));
     return 1.0;
   }
 
-  public double argument()
+  public double argument() // argument = tan-1(b/a)
   {
+    //Math.atan2(b,a);
     return 1.0;
   }