Original Paper

Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry

, Volume 53, Issue 1, pp 261-272

First online:

Open Access This content is freely available online to anyone, anywhere at any time.

Some properties of secantoptics of ovals

  • Witold MozgawaAffiliated withInstitute of Mathematics, UMCS Email author 
  • , Magdalena SkrzypiecAffiliated withInstitute of Mathematics, UMCS


In this paper we continue the investigation of further properties of secantoptics introduced and considered by Skrzypiec (Beiträge Algebra Geom. 49(1):205–215, 2008) and by Mozgawa and Skrzypiec (Bull. Belg. Math. Soc. Simon Stevin 16(3):435–445, 2009). We describe properties of secantoptics of ovals of constant width, prove a theorem on tangents to secantoptic and give the converse of the sine theorem for secantoptics.


Secantoptic Isoptic Secant Support function

Mathematics Subject Classification (2000)

53A04 53C44