Pech, Pavel On a 3D extension of the Simson-Wallace theorem. (English) Zbl 1317.51026 J. Geom. Graph. 18, No. 2, 205-215 (2014). Cited in 2 Documents MSC: 51N20 Euclidean analytic geometry 51N05 Descriptive geometry 51N35 Questions of classical algebraic geometry Keywords:Simson-Wallace loci; cubic surface; Cayley cubic; Monge projection; 3D extension of the Simson-Wallace theorem; regular tetrahedron; descriptive geometry Software:GeoGebra; Epsilon PDFBibTeX XMLCite \textit{P. Pech}, J. Geom. Graph. 18, No. 2, 205--215 (2014; Zbl 1317.51026) Full Text: Link