VisualizationTool - http://www.geocities.co.jp/CollegeLife-Labo/9021/software/hyplane.html - http://www.math.meiji.ac.jp/~ahara/hyplane.html - polygonal model of K=-1 surface in R3 [[:included in knxm:]]
![[PukiWiki]](image/knxmpen.png "[PukiWiki]")
