ILE COBOL Language Reference


ATAN

The ATAN function returns a numeric value in radians that approximates the arctangent of the argument specified.

The function type is numeric.

Format
 
>>-FUNCTION ATAN--(argument-1)---------------------------------><
 
 
argument-1
Must be class numeric.

The returned value is the approximation of the arctangent of argument-1, and is greater than -Pi/2 and less than +Pi/2.

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