Bitangent
Sign in to saveright|frame|The Trott curve (black) has 28 real bitangents (red). This image shows 7 of them; the others are symmetric with respect to 90° rotations through the origin and reflections through the two blue axes.
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Article
4 sectionsContents
- Bitangents of algebraic curves
- Bitangents of polygons
- Related concepts
- References
right|frame|The Trott curve (black) has 28 real bitangents (red). This image shows 7 of them; the others are symmetric with respect to 90° rotations through the origin and reflections through the two blue axes.
In geometry, a bitangent to a curve is a line that touches in two distinct points and and that has the same direction as at these points. That is, is a tangent line at and at .
Connections
algebraic curve
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Bitangents of a quartic
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geometry
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line
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digital object identifier
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curve
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tangent
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Dijkstra's algorithm
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binary search algorithm
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Jakob Steiner
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convex polygon
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secant line
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convex hull
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Handle System
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Casey’s theorem
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Bézout's theorem
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glossary of graph theory terms
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Frenet–Serret formulas
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Tangent lines to circles
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Mark Overmars
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