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atan2

Library: ib_udf

Added in: IB

Better alternative: Internal function ATAN2()

Description

Returns the angle whose sine-to-cosine ratio is given by the two arguments, and whose sine and cosine signs correspond to the signs of the arguments. This allows results across the entire circle, including the angles -#/2 and #/2.

Result type: DOUBLE PRECISION

Syntax 

atan2 (num1, num2)

Declaration 

DECLARE EXTERNAL FUNCTION atan2
  DOUBLE PRECISION, DOUBLE PRECISION
  RETURNS DOUBLE PRECISION BY VALUE
  ENTRY_POINT 'IB_UDF_atan2' MODULE_NAME 'ib_udf'