only a q function then you would only have this first matrix this first block right here okay but you have feature one feature two and so on so you calculate everything in terms of these features and then by linearity you can mix it with that vector so in our case this is going to be the one negative one which will give you the q functions right from what we've seen before you obtain a q function by simply mixing your successor features with your um with this task vector and if you have a q function you can pretty easily determine uh which