Approximation of the identity

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

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

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