3-D viewer for Mathematica . Videos Geomview was used in the construction of several mathematical movies including: Not Knot , exploring hyperbolic space rendering of knot complements. [http://www.geom.uiuc.edu/video/NotKnot/] Outside In , an award winning movie about the sphere eversion . [http://www.geom.uiuc.edu/docs/outreach/oi/] The shape of space , exploring possible three dimensional spaces.[http://www.geom.uiuc.edu/video/sos/]