Section 6.7 Reference Topics

There are many sites that discuss the relationship between math and art (that is between perspective and projective geometry). You need to look at sites that are not heavily weighted by mathematical notation. One such site is:
http://mathforum.org/sum95/math_and/perspective/perspect.html

A super interactive site exploring some of the ideas of nonEuclidean geometry is found using this link:
http://math.rice.edu/~joel/NonEuclid/

This site explores Saccheri's quadrilateral:
http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Non-Euclidean_geometry.html

Links