Firebird Documentation IndexFirebird 2.5 Language Ref. UpdateExternal functions (UDFs) → atan
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atan

Library: ib_udf

Added in: IB

Better alternative: Internal function ATAN()

Description: Returns the arc tangent of the argument.

Result type: DOUBLE PRECISION

Syntax: 

atan (number)

Declaration: 

DECLARE EXTERNAL FUNCTION atan
   DOUBLE PRECISION
   RETURNS DOUBLE PRECISION BY VALUE
   ENTRY_POINT 'IB_UDF_atan' MODULE_NAME 'ib_udf'
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Firebird Documentation IndexFirebird 2.5 Language Ref. UpdateExternal functions (UDFs) → atan