Hellmuth Stachel (born October 6, 1942 in Graz, Austria) is an Austrian mathematician, a Professor of Geometry at the Technical University of Vienna, who is known due to his contributions to geometry, kinematics and computer-aided design.
Hellmuth Stachel (* 6. Oktober 1942 in Graz) ist ein österreichischer Mathematiker und Professor für Geometrie an der Technischen Universität Wien. Er ist wegen seiner Beiträge zu Geometrie, Kinematik und CAD bekannt. (de)
Hellmuth Stachel (born October 6, 1942 in Graz, Austria) is an Austrian mathematician, a Professor of Geometry at the Technical University of Vienna, who is known due to his contributions to geometry, kinematics and computer-aided design. (en)
Хе́льмут Шта́хель (нем. Hellmuth Stachel) (родился 6 октября 1942 в Граце, Австрия) — современный австрийский математик, профессор Венского технического университета, специалист по геометрии, кинематике и системам автоматизации проектных работ. (ru)