Approximation theory is a branch of mathematics, and a quantitative part of functional analysis. Diophantine approximation deals with approximations of real numbers by rational numbers. …

Jul 14, 2026 · The meaning of APPROXIMATION is the act or process of drawing together. How to use approximation in a sentence.

APPROXIMATION definition: 1. a guess of a number that is not exact but that is close: 2. a guess of a number that is not…. Learn more.

An approximation means that a measurement or value is close, but not exactly equal, to the true value (due to rounding or other faults).

Define approximation. approximation synonyms, approximation pronunciation, approximation translation, English dictionary definition of approximation. n. 1. The act, process, or result of approximating. 2. …

In mathematics, approximation theory is concerned with how functions can best be approximated with simpler functions, and with quantitatively characterizing the errors introduced thereby. What is meant …

APPROXIMATION definition: a guess or estimate. See examples of approximation used in a sentence.

Apr 2, 2026 · The simple definition of APPROXIMATION is an amount, figure, etc., that is almost correct and is not intended to be exact : an approximate amount, figure, etc..

Jul 2, 2025 · Approximation, a cornerstone of both theoretical and applied mathematics, is the process of finding a value or function that is acceptably close to the true value, especially when obtaining the …

The astronauts train in a room that provides an approximation of conditions in space. There's little more than a vague approximation to the truth in their story.