Since the mid-20th century, one of the interesting and popular mathematical forms for architects. It is the Quadric Surface equation of the Hyperbolic Paraboloid. According to Erik Demaine; “Hypars and joining hypars in a few special ways have been used extensively in architecture. For example, Curt Siegel’s 1962 book Structure and Form in Modern Architecture illustrates the roof of the Girls’ Grammar School in London (designed by Chamberlin, Powell, and Bonn) which […]