Schoute Coaxal System

The Circumcircle, Brocard Circle, Lemoine Line, and Isodynamic Points belong to a CoaxalSystem orthogonal to the Apollonius Circles, called the Schoute coaxal system. In general, there are 12 pointswhose Pedal Triangles with regard to a given Triangle have a given form. They lie six bysix on two Circles of the Schoute coaxal system.

References

Johnson, R. A. Modern Geometry: An Elementary Treatise on the Geometry of the Triangle and the Circle. Boston, MA: Houghton Mifflin, pp. 297-299, 1929.

• Radon Transform--Cylinder
• Radon Transform--Delta Function
• Radon Transform--Gaussian
• Radon Transform--Square
• Rado's Sigma Function
• Railroad Track Problem
• Ramanujan 6-10-8 Identity
• Ramanujan Constant
• Ramanujan Continued Fraction
• Ramanujan Cos/Cosh Identity
• Ramanujan-Eisenstein Series
• Ramanujan Function
• Ramanujan g- and G-Functions
• Ramanujan-Petersson Conjecture
• Ramanujan Psi Sum
• Ramanujan's Hypergeometric Identity
• Ramanujan's Hypothesis
• Ramanujan's Identity
• Ramanujan's Integral
• Ramanujan's Interpolation Formula
• Ramanujan's Master Theorem
• Ramanujan's Square Equation
• Ramanujan's Sum
• Ramanujan's Sum Identity
• Ramanujan's Tau-Dirichlet Series