Tarry Point
The point at which the lines through the Vertices of a Triangle Perpendicular tothe corresponding sides of the first Brocard Triangle, are Concurrent. The Tarry pointlies on the Circumcircle opposite the Steiner Point. It has Triangle CenterFunction
where
is the Brocard Angle. The Simson Line of the Tarry point is Perpendicular to the line 
, when 
is the Circumcenter and 
is the Lemoine Point.See also Brocard Angle, Brocard Triangles, Circumcircle, Lemoine Point, Simson Line,Steiner Points
References
Gallatly, W. The Modern Geometry of the Triangle, 2nd ed. London: Hodgson, p. 102, 1913. Johnson, R. A. Modern Geometry: An Elementary Treatise on the Geometry of the Triangle and the Circle. Boston, MA: Houghton Mifflin, pp. 281-282, 1929. Kimberling, C. ``Central Points and Central Lines in the Plane of a Triangle.'' Math. Mag. 67, 163-187, 1994.
- Euler's Conjecture
- Euler's Criterion
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- Euler's Graeco-Roman Squares Conjecture
- Euler's Homogeneous Function Theorem
- Euler's Hypergeometric Transformations
- Euler's Idoneal Number
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- Euler's Triangle