Saturday, July 13, 2019

Fractals in GeoGebra

Two fractals in GeoGebra: Menger Sponge (link) and Sierpinski Triangle.




Tuesday, June 25, 2019

Wednesday, May 22, 2019

A curious sequence in squares

A curious sequence: what fraction of each square is shaded?  (You may assume radial symmetry.)





Saturday, April 27, 2019

Overlapping squares No. 2



Inspired by


Thursday, January 31, 2019

Tuesday, January 8, 2019