Here's how to make every amount up to £3.88 with the fewest coins http://codepen.io/christianp/full/bWGmPg/ https://mastodon.social/media/anUckrHJj6AiNhM_R4I

‪I'll be giving a public lecture at Duke University, Durham NC on Tuesday April 18! https://math.duke.edu/events/50880-plum-3d-shadows-casting-light-4th-dimension‬