Articles by Elizabeth Williams Elizabeth A. WilliamsElizabeth is a freelance mathematician accompanied by Zeke, a free-range rat. @RealityMinus3 electromagneticretaliation.wordpress.com All articles by Elizabeth A. What is the point of intersection?18 October 2018Elizabeth A Williams falls off a logChristmaths carols II20 December 2016Behind today's door... Another carol!Christmaths carols I4 December 2016Behind today's door... a mathematical Christmas Carol