For a fixed positive angle , we get an explicit formulas for an -isoptic curve of a triangle and study some of its properties. We use obtained results to show that -isoptic of an oval is an envelope of -isoptics of properly chosen triangles.
Cite this article
Małgorzata Michalska, Witold Mozgawa, -isoptics of a triangle and their connection to -isoptic of an oval. Rend. Sem. Mat. Univ. Padova 133 (2015), pp. 159–172DOI 10.4171/RSMUP/133-8