commit

src/Complex.java

-// work out here
 public class Complex {
 
   public double real;
@@ -27,25 +26,24 @@ public class Complex {
   { 
     return real;
   }
-
-  public double magnitude() // magnitude = sqrt(a^2 + b^2)
+// work out here
+  public double magnitude() // problem 1 magnitude = sqrt(a^2 + b^2)
   {
-    Math.sqrt(Math.pow(this.real,2) + Math.pow(this.imag,2));
-    return 1.0;
+    return Math.sqrt(Math.pow(real, 2) + Math.pow(imag, 2));
   }
 
-  public double argument() // argument = tan-1(b/a)
+  public double argument() // problem 2 argument = tan-1(b/a)
   {
-    //Math.atan2(b,a);
-    return 1.0;
+    return Math.atan2(imag,real);
   }
 
-  public String toString()
+  public String toString() // problem 3 format = a + jb
   {
-    return "";
+    // employ if statement?
+    return real + " + " + "j" + imag;
   }
 
-  public Complex add(Complex complexNum)
+  public Complex add(Complex complexNum) // problem 4 addition (a + c) + j(b + d)
   {
     Complex answer = new Complex(0.0,0.0);