Approximation of the identity

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

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

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