Video: Doodling in Math

[Vi Hart]( has a fantastic collection of videos about doodling based on mathematical concepts. The one I am showing here involves doodling based on graph theory — those who know graph theory’s origins in the classical problem of [“The Seven Bridges of Konigsberg”](√∂nigsberg) will recognize the early doodles as being terrific examples of Euler’s work. Enjoy! I am showing all of them to my six year old.