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Atan

docs/reference/query-languages/esql/_snippets/functions/examples/atan.md

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% This is generated by ESQL's AbstractFunctionTestCase. Do not edit it. See ../README.md for how to regenerate it.

Example

esql
ROW a=12.9
| EVAL atan=ATAN(a)
a:doubleatan:double
12.91.4934316673669235