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* Functions E-Z * Incorporate changes from #103686 * More functions * More functions * Update docs/reference/esql/functions/floor.asciidoc Co-authored-by: Liam Thompson <32779855+leemthompo@users.noreply.github.com> * Update docs/reference/esql/functions/left.asciidoc Co-authored-by: Liam Thompson <32779855+leemthompo@users.noreply.github.com> * Apply suggestions from code review Co-authored-by: Alexander Spies <alexander.spies@elastic.co> * Review feedback * Fix geo_shape description * Change 'colum'/'field' into 'expressions' * Review feedback * One more --------- Co-authored-by: Liam Thompson <32779855+leemthompo@users.noreply.github.com> Co-authored-by: Alexander Spies <alexander.spies@elastic.co> Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
49 lines
1.1 KiB
Text
49 lines
1.1 KiB
Text
[discrete]
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[[esql-pow]]
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=== `POW`
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*Syntax*
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[.text-center]
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image::esql/functions/signature/pow.svg[Embedded,opts=inline]
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*Parameters*
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`base`::
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Numeric expression. If `null`, the function returns `null`.
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`exponent`::
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Numeric expression. If `null`, the function returns `null`.
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*Description*
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Returns the value of `base` raised to the power of `exponent`. Both arguments
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must be numeric. The output is always a double. Note that it is still possible
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to overflow a double result here; in that case, null will be returned.
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*Supported types*
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include::types/pow.asciidoc[]
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*Examples*
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[source.merge.styled,esql]
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----
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include::{esql-specs}/math.csv-spec[tag=powDI]
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----
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[%header.monospaced.styled,format=dsv,separator=|]
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|===
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include::{esql-specs}/math.csv-spec[tag=powDI-result]
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|===
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The exponent can be a fraction, which is similar to performing a root.
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For example, the exponent of `0.5` will give the square root of the base:
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[source.merge.styled,esql]
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----
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include::{esql-specs}/math.csv-spec[tag=powID-sqrt]
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----
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[%header.monospaced.styled,format=dsv,separator=|]
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|===
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include::{esql-specs}/math.csv-spec[tag=powID-sqrt-result]
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|===
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