It's the math that makes quilting interesting. Challenging my mind to figure out what size to make things and how big they will end up; whether I have enough fabric or not, and what is the best way to cut what I do have. My husband always reminds me to measure twice and cut once, but I still get in a hurry and launch out too soon and then the math really becomes interesting. I bought EQ6 thinking it would do some of the work for me, but I always end up with the graph paper, ruler and pencil. I do my co-worker's math for her, too.
BTW - I'm not a mathematician, nor do I work with numbers (I'm a counsellor!). But, I love puzzles.