/// <summary> /// Returns the hashcode for this instance. /// </summary> /// /// <returns>A 32-bit signed integer hash code.</returns> /// public override int GetHashCode( ) { return (V00.GetHashCode( ) + V01.GetHashCode( ) + V02.GetHashCode( ) + V10.GetHashCode( ) + V11.GetHashCode( ) + V12.GetHashCode( ) + V20.GetHashCode( ) + V21.GetHashCode( ) + V22.GetHashCode( )); }