%0 Journal Article
%T Universal Hyperbolic Geometry III: First Steps in Projective Triangle Geometry
%A Wildberger
%A Norman John
%J -
%D 2011
%X Sa£żetak We initiate a triangle geometry in the projective metrical setting, based on the purely algebraic approach of universal geometry, and yielding in particular a new form of hyperbolic triangle geometry. There are three main strands: the Orthocenter, Incenter and Circumcenter hierarchies, with the last two dual. Formulas using ortholinear coordinates are a main objective. Prominent are five particular points, the b, z, x, h and s points, all lying on the Orthoaxis A. A rich kaleidoscopic aspect colours the subject
%K universal hyperbolic geometry
%K triangle geometry
%K projective geometry
%K bilinear form
%K ortholinear coordinates
%K incenter
%K circumcenter
%K orthoaxis
%U https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=114391