Beginner · Fundamentals
Approximation error
Visual diagram · (in preparation) · Math · (in preparation) · Worked example · 3 difficulty levels.
TL;DR. The difference or discrepancy between an exact value and its approximated value.
Technical Definition
The difference or discrepancy between an exact value and its approximated value.
How it works
Approximation error is the quantifiable difference between a precise value and its approximation. This error arises when a value is rounded, truncated, or otherwise simplified, and is a fundamental concept in numerical analysis and computation.