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diff --git a/src/vector.h b/src/vector.h
index bbc3aa7..e59b0e8 100644
--- a/src/vector.h
+++ b/src/vector.h
@@ -13,6 +13,9 @@
 // What we'll do here is create the vector type and use typedef to alias Point
 // to it. Yeah, that's it.
 
+class Vector;
+typedef Vector Point;
+
 class Vector
 {
 	public:
@@ -22,20 +25,20 @@ class Vector
 		Vector operator=(Vector const v);
 		Vector operator+(Vector const v);
 		Vector operator-(Vector const v);
-		Vector operator-(void);					// Unary negation
-		Vector operator*(double const v);		// Vector times constant (double)
-		Vector operator*(float const v);		// Vector times constant (float)
-		Vector operator/(double const v);		// Vector divided by constant (double)
-		Vector operator/(float const v);		// Vector divided by constant (float)
-		Vector operator*(Vector const v);		// Vector product
-		double Dot(Vector const v);				// Dot product
-
-		Vector& operator*=(double const v);		// Vector times constant self-assignment
-		Vector& operator/=(double const v);		// Vector divided by constant self-assignment
-		Vector& operator+=(Vector const v);		// Vector plus Vector self-assignment
-		Vector& operator+=(double const v);		// Vector plus constant self-assignment
-		Vector& operator-=(Vector const v);		// Vector minus Vector self-assignment
-		Vector& operator-=(double const v);		// Vector minus constant self-assignment
+		Vector operator-(void);				// Unary negation
+		Vector operator*(double const v);	// Vector times constant (double)
+		Vector operator*(float const v);	// Vector times constant (float)
+		Vector operator/(double const v);	// Vector divided by constant (double)
+		Vector operator/(float const v);	// Vector divided by constant (float)
+		Vector operator*(Vector const v);	// Vector product
+		double Dot(Vector const v);			// Dot product
+
+		Vector& operator*=(double const v);	// Vector times constant self-assignment
+		Vector& operator/=(double const v);	// Vector divided by constant self-assignment
+		Vector& operator+=(Vector const v);	// Vector plus Vector self-assignment
+		Vector& operator+=(double const v);	// Vector plus constant self-assignment
+		Vector& operator-=(Vector const v);	// Vector minus Vector self-assignment
+		Vector& operator-=(double const v);	// Vector minus constant self-assignment
 
 		bool operator==(Vector const v);		// Check for equality
 		bool operator!=(Vector const v);		// Check for inequality
@@ -49,13 +52,13 @@ class Vector
 
 		static double Dot(Vector v1, Vector v2);
 		static double Magnitude(Vector v1, Vector v2);
+		static double Angle(Point p1, Point p2);
 		static double Parameter(Vector v1, Vector v2, Vector p);
 		static Vector Normal(Vector v1, Vector v2);
+		static double AngleBetween(Vector a, Vector b);
 
 	public:
 		double x, y, z;
 };
 
-typedef Vector Point;
-
 #endif	// __VECTOR_H__