# Difference between revisions of "Approximation theory"

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In [[mathematics]], '''approximation theory''' is concerned with how [[Function (mathematics)|functions]] can be best [[approximation|approximated]] with simpler functions, and with quantitatively characterising the [[approximation error|errors]] introduced thereby. What is meant by ''best'' and ''simpler'' will depend on the application. | In [[mathematics]], '''approximation theory''' is concerned with how [[Function (mathematics)|functions]] can be best [[approximation|approximated]] with simpler functions, and with quantitatively characterising the [[approximation error|errors]] introduced thereby. What is meant by ''best'' and ''simpler'' will depend on the application. | ||

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+ | == See also == | ||

+ | *[[function approximation]] | ||

+ | *[[approximation]] |

## Revision as of 03:10, 24 November 2007

In mathematics, **approximation theory** is concerned with how functions can be best approximated with simpler functions, and with quantitatively characterising the errors introduced thereby. What is meant by *best* and *simpler* will depend on the application.