ATAN - Query language in Cosmos DB (in Azure and Fabric)

The ATAN function calculates the trigonometric arctangent of the specified numeric value. The arctangent is the angle, in radians, whose tangent is the specified numeric expression.

Syntax

ATAN(<numeric_expr>)

Arguments

Return types

Returns a numeric expression.

Examples

This section contains examples of how to use this query language construct.

Arctangent of a value

In this example, the ATAN function is used to calculate the arctangent of -45.01.

SELECT VALUE {
  arctangent: ATAN(-45.01)
}

[
  {
    "arctangent": -1.5485826962062663
  }
]

Remarks

• This function doesn't utilize the index.