Interpolation

:This article is about interpolation in mathematics. See also interpolation (music) and interpolation (manuscripts).

Example

For example, suppose we have a table like this, which gives some values of an unknown function f.

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What value does the function have at, say, x = 2.5? Interpolation answers questions like this.

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There are many different interpolation methods, some of which are described below. Some of the things to take into account when choosing an appropriate algorithm are: How accurate is the method? How expensive is it? How smooth is the interpolant? How many data points are needed?

Related Topics:
Algorithm - Smooth

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