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SQL Anywhere 10.0.1 » UltraLite - Database Management and Reference » UltraLite SQL Function Reference » Alphabetical list of functions

ATAN function [Numeric] Next Page

ATAN2 function [Numeric]

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


ATAN2 ( numeric-expression-1, numeric-expression-2 )


numeric-expression-1    The numerator in the ratio whose arc-tangent is calculated.

numeric-expression-2    The denominator in the ratio whose arc-tangent is calculated.


This function converts its arguments to DOUBLE, performs the computation in double-precision floating point, and returns a DOUBLE as the result.

See also
Standards and compatibility

The following statement returns the arc-tangent value for the ratio 0.52 to 0.60.

SELECT ATAN2( 0.52, 0.60 );