Editorial

Welcome to the first issue of Parabola Incorporating Function for 2006. The first two articles by Mike Hirschhorn are good illustrative examples of the sort of recreational games that you can play with mathematics. For Mike, a mathematical function becomes a play toy to experiment with, much the same as a child might play with pieces of Lego. Experiments like these can push the frontiers of mathematical knowledge, uncovering new relations and new structures.