public static bool operator !=( Vector4D _Op0, Vector4D _Op1 )
{
if ( (_Op0 as object) == null && (_Op1 as object) == null )
return false;
if ( (_Op0 as object) == null && (_Op1 as object) != null )
return true;
if ( (_Op0 as object) != null && (_Op1 as object) == null )
return true;
return (_Op0.x - _Op1.x)*(_Op0.x - _Op1.x) + (_Op0.y - _Op1.y)*(_Op0.y - _Op1.y) + (_Op0.z - _Op1.z)*(_Op0.z - _Op1.z) + (_Op0.w - _Op1.w)*(_Op0.w - _Op1.w) > float.Epsilon;
}