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

ASIN function [Numeric] Next Page

ATAN function [Numeric]

Returns the arc-tangent, in radians, of a number.


ATAN( numeric-expression )


The ATAN and TAN functions are inverse operations.


numeric-expression    The tangent of the angle.


This function converts its argument 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 0.52.

SELECT ATAN( 0.52 );