Example image of eyePlorer eyePlorer map for 'Problem of Apollonius': Circle Euclidean geometry Pappus of Alexandria Adriaan van Roomen Compass and straightedge constructions Hyperbola Franciscus Vieta Line (geometry) Point (geometry) Radius Isaac Newton LORAN Algebra Algebraic equation Symmetry in mathematics Inversive geometry Joseph Diaz Gergonne Transformation (geometry) Lie sphere geometry Higher dimension Sphere Descartes' theorem René Descartes Apollonian gasket Ford circle Fractal Hardy–Littlewood circle method Number theory Circles of Apollonius Latin Participle Parallel lines Point at infinity Tangent lines to circles Multilateration Apollonius of Perga John Casey (mathematician) Philosophiæ Naturalis Principia Mathematica Angle trisection Conic section Ellipse Parabola Doubling the cube Menaechmus Regiomontanus Jean-Victor Poncelet Pole and polar Power of a point Harold Scott MacDonald Coxeter Julius Petersen