Estimate of minimum and maximum.

Estimates close to exact values.

In computer science, approximate string matching (often colloquially referred to as fuzzy string searching) is the technique of finding strings that match a pattern approximately (rather than exactly).

a screen-space anti-aliasing algorithm created by Timothy Lottes at Nvidia.

Approximate Bayesian computation constitutes a class of computational methods rooted in Bayesian statistics that can be used to estimate the posterior distributions of model parameters.

In statistics, an approximate entropy (ApEn) is a technique used to quantify the amount of regularity and the unpredictability of fluctuations over time-series data.

In mathematics, the approximate limit is a generalization of the ordinary limit for real-valued functions of several real variables.