My father (Professor Alan Mackay) and I visited Professor Penrose in Oxford in 1975, to discuss his new tiling pattern, and I was able to write a computer progr

My father (Professor Alan Mackay) and I visited Professor Penrose in Oxford in 1975, to discuss his new tiling pattern, and I was able to write a computer program (in Algol 60) to draw it on a graph plotter. See http://bobmackay.com/Penrose/PenroseColour300.jpg http://bobmackay.com/Penrose/PenroseColour300.jpg My father generated a diffraction pattern from this, using light rather than X-rays, and so was able to predict the pattern eventually discovered by Dan Shechtman some years later. You might also be amused by a weave based on the pattern, with threads going in five different directions: http://bobmackay.com/PentaTable/index.html http://bobmackay.com/PentaTable/index.html I would be in the market for some of this cookware, but I suspect that it is apocryphal.