How to safely reopen offices, schools and other public spaces while keeping people six feet apart comes down to a question mathematicians have been studying for centuries. Sphere packing might seem ...

THIS is only our old friend, “La Geometria del Compasso di Lorenzo Mascheroni” (Paris, 1797), decked out in the manner we have indicated in the quoted portion of the title. The order of sequence has ...

Arc length is a fraction of circumference. Area of a sector is a fractions of the area of a circle. Both can be calculated using the angle at the centre and the diameter or radius. Practice circle ...

THIS book is a sequel to “Euclid Revised” by the same author. It consists of one hundred pages, divided into three chapters and an appendix. The first chapter is devoted to the discussion of planes ...