Today in experimental drawing we allowed to draw whatever and however we wanted. I went for a shot with strong perspective as I'm currently interested in perspective from researching liminal space. The sports hall is a great place to draw perspective because it's vast and rather empty but has a network of different lines on the floor that stretch out in front of you at a variety of angles.
When Jill saw my work she mentioned the very mathematical way that I work (something Bob has also previously mentioned). She suggested that looking at artists who use a systematic approach to their work may help me with my process for my own work. I can't think of any artists at the moment but I will do some research and find some.