When two lines meet at a point the space between is called the angle. This space is the amount of turning from one line to the other.

Geometry is packed with terminology that precisely describes the way various points, lines, surfaces and other dimensional elements interact with one another. Sometimes they are ridiculously ...

THE Paralogistes pseudomathematicus has become so rare, or possibly so shy, that it is a real pleasure to find that the species is not extinct. Alack! that De Morgan is not with us, to do justice to ...