Approximation ratio

Approximation, Diophantine approximation, Order of approximation, Approximation algorithm, Approximation theory, Linear approximation, Stirling's approximation, Born approximation, Successive-approximation ADC, Polynomial-time approximation scheme, Superstrong approximation, Minimax approximation algorithm, Approximation in algebraic groups, WKB approximation, Dirichlet's approximation theorem, Born–Huang approximation, Spouge's approximation, Two-stream approximation, Laplace's approximation, Bhāskara I's sine approximation formula, Paraxial approximation, Journal of Approximation Theory, Boussinesq approximation, Successive approximation, Supersymmetric WKB approximation, Cellular approximation theorem, Rational approximation, Artin approximation theorem, High-frequency approximation, Percus–Yevick approximation, Approximation error, Born–Oppenheimer approximation, Simplicial approximation theorem, Approximations of π, Weak approximation, Muffin-tin approximation, Rotating-wave approximation, Small-angle approximation, Komlós–Major–Tusnády approximation, Low-rank approximation, Local-density approximation

Sheth–Tormen approximation, Coherent potential approximation, Slowly varying envelope approximation, Patched conic approximation, Least-squares function approximation, Approximation property (ring theory), Heavy traffic approximation, Discrete dipole approximation, Approximation to the identity, Fully polynomial-time approximation scheme, Binomial approximation, Stochastic approximation, Rayleigh–Gans approximation, Constructive Approximation, Function approximation, Hardness of approximation, Typographic approximation, Simultaneous perturbation stochastic approximation, Low-rank matrix approximations, Sparse approximation, Eikonal approximation, Derjaguin approximation, Approximation property, Side-approximation theorem, McKay's approximation for the coefficient of variation, Parameterized approximation algorithm, Quenched approximation, Empty lattice approximation, Random phase approximation, East Journal on Approximations, Approximation-preserving reduction, APX, Korovkin approximation, GW approximation, Quasistatic approximation, Vecchia approximation, Universal approximation theorem, Acoustic approximation, Sigma approximation, Müntz–Szász theorem, Kronecker's theorem, Effective medium approximations, Lanczos approximation, Fitness approximation, Padé approximant, CUR matrix approximation, Steady state (chemistry), Stone–Weierstrass theorem, Bernstein's theorem (approximation theory), Kirkwood approximation

Approximation, Diophantine approximation, Order of approximation, Approximation algorithm, Approximation theory, Linear approximation, Stirling's approximation, Born approximation, Successive-approximation ADC, Polynomial-time approximation scheme, Superstrong approximation, Minimax approximation algorithm, Approximation in algebraic groups, WKB approximation, Dirichlet's approximation theorem, Born–Huang approximation, Spouge's approximation, Two-stream approximation, Laplace's approximation, Bhāskara I's sine approximation formula, Paraxial approximation, Journal of Approximation Theory, Boussinesq approximation, Successive approximation, Supersymmetric WKB approximation, Cellular approximation theorem, Rational approximation, Artin approximation theorem, High-frequency approximation, Percus–Yevick approximation, Approximation error, Born–Oppenheimer approximation, Simplicial approximation theorem, Approximations of π, Weak approximation, Muffin-tin approximation, Rotating-wave approximation, Small-angle approximation, Komlós–Major–Tusnády approximation, Low-rank approximation, Local-density approximation, Sheth–Tormen approximation, Coherent potential approximation, Slowly varying envelope approximation, Patched conic approximation, Least-squares function approximation, Approximation property (ring theory), Heavy traffic approximation, Discrete dipole approximation, Approximation to the identity, Fully polynomial-time approximation scheme, Binomial approximation, Stochastic approximation, Rayleigh–Gans approximation, Constructive Approximation, Function approximation, Hardness of approximation, Typographic approximation, Simultaneous perturbation stochastic approximation, Low-rank matrix approximations, Sparse approximation, Eikonal approximation, Derjaguin approximation, Approximation property, Side-approximation theorem, McKay's approximation for the coefficient of variation, Parameterized approximation algorithm, Quenched approximation, Empty lattice approximation, Random phase approximation, East Journal on Approximations, Approximation-preserving reduction, APX, Korovkin approximation, GW approximation, Quasistatic approximation, Vecchia approximation, Universal approximation theorem, Acoustic approximation, Sigma approximation, Müntz–Szász theorem, Kronecker's theorem, Effective medium approximations, Lanczos approximation, Fitness approximation, Padé approximant, CUR matrix approximation, Steady state (chemistry), Stone–Weierstrass theorem, Bernstein's theorem (approximation theory), Kirkwood approximation, Discrete dipole approximation codes, Beta plane, Saddlepoint approximation method, Wien approximation, Independent electron approximation, Adam Adamandy Kochański, Boussinesq approximation (water waves), Boussinesq approximation (buoyancy), Model solid approximation, Oka–Weil theorem, Quasi-harmonic approximation, Mergelyan's theorem, Progressive-iterative approximation method, Diffuse element method, Weak temperature gradient approximation, K-approximation of k-hitting set, K-minimum spanning tree, Schlick's approximation, Stokes approximation and artificial time, Dynamical mean-field theory, Continuous slowing down approximation range, Markov chain approximation method, Central field approximation, Korringa–Kohn–Rostoker method, Binary collision approximation, Convex volume approximation, Iterative method, Moment closure, Runge's theorem, Taylor's theorem, Geometric set cover problem, Integrated nested Laplace approximations, Black's approximation, Minimum-weight triangulation, Gaussian process approximations, Pi Day, Mean-field theory, Nearly free electron model, Wiener connector, Simple rational approximation, Maximum cut, Fresnel diffraction, Gas in a box, Cauchy–Born rule, Liouville number, Bethe–Salpeter equation, Independent set (graph theory), Thin lens, Adiabatic theorem, Opaque set, Semiclassical, Fluid limit, Relaxation (approximation), Stationary phase approximation, Laser linewidth, Partition problem, Impact depth, Shaping (psychology), Post-Newtonian expansion, Simple continued fraction