math:arctan() | Data Analysis 1.137.0-1.142.1

`math:arctan()`

Calculates the arc tangent of a value; the returned angle is in the range -π/2 through π/2.

Parameter	Type	Required	Default Value	Description
`as`	string	optional^[a]	`_arctan`	The name of the output field.
`field`^[b]	string	required		The name of the input field.
^[a]Optional parameters use their default value unless explicitly set. ^[b]The parameter name `field` can be omitted.

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Omitted Argument Names
The argument name for field can be omitted; the following forms of this function are equivalent:
logscale Syntax
math:arctan("value")
and:
logscale Syntax
math:arctan(field="value")
These examples show basic structure only.