File:TorusAsSquare.svgThe fundamental polygon of a torus. To construct the torus, join the sides with the same letter together so that the directions of the arrows match. English
File:7x-torus.svgtorus into seven mutually adjacent regions, requiring seven colors. The torus is shown unrolled onto a square; points on the top edge of the square should
File:SurfacesWithAndWithoutBoundary.svgThis image is a derivative work of the following images: File:Simple Torus.svg licensed with Cc-by-sa-3.0,2.5,2.0,1.0, GFDL 2007-11-23T21:20:42Z YassineMrabet
File:TorusFromSquare.svgDescriptionTorusFromSquare.svg English: making a torus from a square Deutsch: Zusammenkleben der Sphäre zu einem Torus Date 18 July 2008 Source Own work
File:Borromean Rings Illusion.pngdiffuse 0.85 brilliance 2 phong 0.25 phong_size 7.5 } #declare GREEN_TORUS = torus { 0.6, r_tube // major and minor radius rotate -90*x // so we can see