Example image of eyePlorer eyePlorer map for 'Directional derivative': Cartesian coordinate system Derivative Mathematics Partial derivative Vector space Gâteaux derivative Function (mathematics) Limit Scalar field Dot product Gradient Unit vector Chain rule Constant factor rule in differentiation Leibniz (disambiguation) Neighbourhood (mathematics) Product rule Sum rule in differentiation Total derivative Hypersurface Orthogonality Surface normal Neumann boundary condition Tensor Tensor derivative (continuum mechanics) Cauchy boundary condition Functional derivative Current (mathematics) Tricubic interpolation Structure tensor Connection (mathematics) Fréchet derivative Ehresmann connection Capacity of a set Covariant derivative Robin boundary condition Danskin's theorem Differential geometry Large deviations of Gaussian random functions Differential form Lie derivative Multipole moments Del Boundary value problem Complex analysis Newtonian potential Derivative (generalizations) Bounded variation Calculus of variations Covariant transformation