Example image of eyePlorer eyePlorer map for 'Solving the geodesic equations': General relativity Geodesic Mathematics Physics Riemannian geometry Four-acceleration Spacetime Atlas (topology) Christoffel symbols Curve Riemannian manifold Metric (mathematics) Ordinary differential equation Partial derivative Initial value problem Picard–Lindelöf theorem Euler–Lagrange equation Coordinate system Physical law Derivative Heuristic Exact solution Metric tensor (general relativity) Maximal element Mathematics of general relativity Theoretical motivation for general relativity