ASA SQL Reference
  SQL Functions
    Alphabetical list of functions

ATN2 function [Numeric]

Function 

Returns the arc-tangent, in radians, of the ratio of two numbers.

Syntax 

{ ATN2 | ATAN2 } ( numeric-expression1, numeric-expression2 )

Parameters 

numeric-expression1    The numerator in the ratio whose arc tangent is calculated.

numeric-expression2    The denominator in the ratio whose arc-tangent is calculated.

Standards and compatibility 

• SQL/92    Vendor extension.

• SQL/99    Vendor extension.

• Sybase    ATN2 is compatible with Adaptive Server Enterprise. ATAN2 is not supported by Adaptive Server Enterprise.

See also 

ACOS function [Numeric]

ASIN function [Numeric]

ATAN function [Numeric]

TAN function [Numeric]

Example 

The following statement returns the value 0.008666.

SELECT ATAN2( 0.52, 060 )