Approximation ratio

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

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

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