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Pedal Curves and their Envelopes

sažetak izlaganja sa skupa

sažetak izlaganja sa skupa

Pedal Curves and their Envelopes

Vrsta prilog sa skupa (u zborniku)
Tip sažetak izlaganja sa skupa
Godina 2015
Nadređena publikacija Abstracts of 18th Scientific-Professional Colloquium on Geometry and Graphics
Stranice str. 14-14
Status objavljeno

Sažetak

In the Euclidean plane with the pedal transformation the pedal curve of a given generating curve respect to the pole can be obtained. The pedal curve ce of a generating curve c1 with respect to a pole P is the locus of the foot of the perpendicular lines from P to all tangent lines of the curve c1, [4]. If the generating curve c1 is a conic then its pedal curve ce can be given as an envelope of circles, [2]. The pedal transformation can be extended in the quasi-hyperbolic plane where the metric is induced by the absolute gure FQH = fF ; f1 ; f2g. In the quasi-hyperbolic plane the pedal curve cqh of a given generating curve c2 respect to the polar line p is the locus of the lines joining the points of the curve c2 with its corresponding perpendicular points on the polar line p, [1]. In this presentation we will give the construction of the envelope of the pedal curve and study the pedal curve as an envelope of circles in the quasi-hyperbolic plane.

Ključne riječi

pedal transformation; pedal curve; envelope; envelope of circles; quasi-hyperbolic plane