Example image of eyePlorer eyePlorer map for 'Tangential and normal components': Curve Euclidean vector Mathematics Perpendicular Tangent Surface Manifold Submanifold Tangent space Dot product Surface normal Unit vector Cross product Exact sequence Quotient space Direct sum of modules Riemannian manifold Tangent vector Immersion Parametric equation Hypersurface Level set Critical point (mathematics) Lagrange multipliers Total derivative Normal (mathematics) Method of images Shocks and discontinuities (magnetohydrodynamics) Interface conditions for electromagnetic fields Angular velocity Geoid Surface integral Prandtl–Meyer expansion fan Component Pedal curve Covariant derivative Centripetal force Rotation around a fixed axis Gas Stress (mechanics)