Example image of eyePlorer eyePlorer map for 'Stationary point': Calculus Derivative Function (mathematics) Gradient Mathematics Parallel (geometry) Tangent Critical point (mathematics) Concave function First derivative test Inflection point Fermat's theorem (stationary points) Continuous function Graph of a function Second derivative Cut-the-Knot Euler–Lagrange equation Rolle's theorem Saddle point Second derivative test BFGS method Invex function Newton's method in optimization Quasi-Newton method Stoner-Wohlfarth Astroid Lagrange multipliers Maupertuis' principle Action (physics) Psychometric function Atoms in molecules Hamilton's principle WKB approximation Method of steepest descent Sliding mode control Time-dependent density functional theory Hessian matrix Minimum total potential energy principle Laplace operator Gauss–Newton algorithm Pearson distribution Equilibrium Stationary Turning Point Chemical equilibrium Snell's law Histogram Differential calculus State space (controls) Optimization (mathematics) Backstepping