ArcTan (PQL)

Returns the arc tangent of a number. 

  • Returned Output: Numeric
  • Library: PQL \ Granular \ Math
  • Version: 2023.00.000
  • Compatibility: Pyramid Query Language (PQL) data sources


ArcTan( <Column Number> )

Syntax Alternatives

ArcTangent( <Column Number> )

* Click on the function's arguments above for more details on the input values.

  • The column needs to be an attribute with numerical values in the model.
  • The math operations are not running on measures (aka 'values' or 'metrics'). The are operating on atomic items in the attribute / column itself. These values can then be subsequently used to drive an aggregated metric.
  • For details on how to employ and use this function see the custom column overview.
Different Function types
  • This function is similar to the PQL common functions of the same name. However, it operates on a column directly at the grain.
  • As a granular function, it is used in the base SQL query itself.


This example returns a column with the inverse tan of each value generated by taking the tan of items in the degrees column.

ArcTan(Tan([math ops].[degrees]))

You can see the effect from this example snippet in column #8, based on the source column in position #10.