Designer Nicholas Rougeux created an interactive version of one of the first multicolor books, which turned Euclid’s pivotal geometric ideas into visual diagrams. “The primary goal was to pay homage ...

THERE are many geometrical results which are not directly formulated or stated in Euclid's Elements, which are yet constantly turning up in the solution of geometrical problems, and it is very ...

THE appearance of these two little books shows that practical teachers have not yet agreed upon the best method of teaching elementary geometry. That this should be so is by no means a matter for ...