Section of Mathematics, Descriptive Geometry and Perspective Members of the Section of Mathematics, Descriptive Geometry and Perspective teach five courses in mathematics and geometry. The compulsory courses are the following: Mathematics, Basics of Descriptive Geometry and Descriptive Geometry and Perspective. Topics and goals of individual courses are adapted for use in architectural design, architectural technology, load-bearing structures, and building installations as well as to the courses in urban planning.