public double Magnitude {
			get { return Math.Sqrt (this.X * this.X + this.Y * this.Y); }
		}

		/// <summary>
		/// The square of the magnitude, or length, of this vector.
		/// <see cref="http://docs.unity3d.com/ScriptReference/Vector3-sqrMagnitude.html"/>
		/// </summary>
		/// <value>The square of the length of this vector</value>
		public double SqrMagnitude {
			get { return this.X * this.X + this.Y * this.Y; }
		}