An approximation is anything that is intentionally similar but not exactly equal to something else. The word approximation is derived from Latin approximatus...

expansion used in the approximation. The expressions: a zeroth-order approximation, a first-order approximation, a second-order approximation, and so forth are...

Rational approximation may refer to: Diophantine approximation, the approximation of real numbers by rational numbers Padé approximation, the approximation of...

mathematics, Stirling's approximation (or Stirling's formula) is an asymptotic approximation for factorials. It is a good approximation, leading to accurate...

In mathematics, a linear approximation is an approximation of a general function using a linear function (more precisely, an affine function). They are...

A minimax approximation algorithm (or L∞ approximation or uniform approximation) is a method to find an approximation of a mathematical function that...

Boussinesq approximation may refer to several modelling concepts – as introduced by Joseph Valentin Boussinesq (1842–1929), a French mathematician and...

In number theory, the study of Diophantine approximation deals with the approximation of real numbers by rational numbers. It is named after Diophantus...

In computer science and operations research, approximation algorithms are efficient algorithms that find approximate solutions to optimization problems...

successive approximation are a category of strategies in pure and applied mathematics. Successive approximation also may refer to: Successive approximation ADC...