Example image of eyePlorer eyePlorer map for 'Geometry': Mathematics Area Axiomatic system Euclid Euclidean geometry Length Volume Astronomy Algebra Analytic geometry Coordinate system Plane curve René Descartes Calculus Perspective (graphical) Carl Friedrich Gauss Differential geometry Leonhard Euler Topology Non-Euclidean geometry Space Euclidean space Manifold General relativity Physics Riemannian geometry String theory Number theory Algebraic geometry Fractal Millennium Area of a disk Circumference Cylinder (geometry) Pyramid (geometry) Pythagorean theorem Sphere Triangle Spherical trigonometry Trigonometry Euclid's Elements Similarity (geometry) Thales Axiom David Hilbert Compass (drafting) Ruler Synthetic geometry Pythagoreanism Commensurability (mathematics)