10 Apr
2020
10 Apr
'20
8 p.m.
Take a unit square and cut along the lines joining any two vertices. This cuts the square into 4 pieces. Now take a unit cube and make plane cuts though any three vertices: how many pieces are produced? (I don't know) Same question for a unit d-dimensional cube, where the cuts are along hyperplanes through any d vertices. Best regards Neil Neil J. A. Sloane, President, OEIS Foundation. 11 South Adelaide Avenue, Highland Park, NJ 08904, USA. Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ. Phone: 732 828 6098; home page: http://NeilSloane.com Email: njasloane@gmail.com