Approximation ratio

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

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

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