900x594 (150645 Bytes) {{Information |Description=Illustration of [[:en:torus|torus]] |Source=self-made, with [[:en:MATLAB|MATLAB]] |Date=~~~~~ |Author=...
with MATLAB. % illustration of a torus, obtained as an isosurface function main() % big and small radii of the torus R = 3; r = 1; Kb = R+r; h = 0.1;...
radiation ions (in red), the neutral gas torus of the volcanic moon Io (green) and the newly discovered neutral gas torus of the moon Europa (blue). The white...
Homology cycles on a torus. Made with Mathematica. This diagram was created with Mathematica. Author: Fropuff Copied from the en wikipedia. English...
(5443 bytes) (By joining the single arrows together and the double arrows together, we get a en:Torus torus with seven mutually touching regions) English...
Illustration of embedding K7 on torus: From Planet Math http://images.planetmath.org:8080/cache/objects/3876/l2h/img10.png used in http://planetmath.org/...
3.0111} torus {2.5,.6 translate <0,27.4,0>} cone {<0,23.6,0>,0.8,<0,27.0844,0>,3.0111} difference { cylinder {0,<0,1.638,0>,2.866144} torus {2.866144...
A contractible loop on a 2-torus: The loop can be homotoped on the torus to the point p {\displaystyle p} (the constant path). created with xfig by Yonatan...
