Emil Molnár, Budapest University of Technology and Economics, Institute of Mathematics, Department of Geometry, Hungary, Visual mathematics and geometry, the “final” step: projective geometry through linear algebra
Anders Hast, Departmentof Information Technology, Division of Visual Information and Interaction, Uppsala University, Sweden, Mathematics + Computer Science = True
Vladimir Volenec, Department of Mathematics, Faculty of Science, University of Zagreb, Croatia, Is any angle a right angle?
