# Function approximation/Related Articles

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*See also changes related to Function approximation, or pages that link to Function approximation or to this page or whose text contains "Function approximation".*

## Parent topics

## Subtopics

- Number theory [r]: The study of integers and relations between them.
^{[e]} - Least squares [r]: Method of determining the curve that best describes the relationship between expected and observed sets of data by minimizing the sums of the squares of deviation between observed and expected values.
^{[e]} - Approximation theory [r]: Field of mathematics that studies how to approximate functions by simpler functions and how good this approximation is.
^{[e]}