Available in HTML and PDF This file is http://www.cs.bham.ac.uk/research/projects/cogaff/misc/p geometry.html From time to time I shall use html2ps and ps2pdf to create a PDF version, better suited for printing: http://www.cs.bham.ac.uk/research/projects/cogaff/misc/p geometry.pdf The PDF version will probably have formatting flaws, and may not be up to date. NOTE ON FORMATTING: