elasticsearch/docs/reference/query-languages/esql/_snippets/functions/asin.md

ASIN [esql-asin]

Syntax

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Parameters

number

Number between -1 and 1. If null, the function returns null.

Description

Returns the arcsine of the input numeric expression as an angle, expressed in radians.

Supported types

number	result
double	double
integer	double
long	double
unsigned_long	double

Example

ROW a=.9
| EVAL asin=ASIN(a)

a:double	asin:double
.9	1.1197695149986342