COBOL Manual for TNS/E Programs (H06.03+)

Intrinsic Functions
HP COBOL Manual for TNS/E Programs—520347-003
14-11
ASIN Function
ASIN Function
ASIN, a numeric function, returns a value in radians that approximates the arcsine of
its argument.
argument
is a numeric argument whose value is in the range -1 to +1.
The returned value approximates the arcsine of the value of argument. It is a floating-
point number in the range -pi/2 to +pi/2. It has no implied decimal point and is precise
to approximately 14 digits.
Example 14-3. ASIN Function
Code:
DATA DIVISION.
WORKING-STORAGE SECTION.
01 A PICTURE S9V99.
PROCEDURE DIVISION.
MOVE FUNCTION ASIN (-1) TO A.
DISPLAY A.
MOVE FUNCTION ASIN (.25) TO A.
DISPLAY A.
MOVE FUNCTION ASIN (.5) TO A.
DISPLAY A.
MOVE FUNCTION ASIN (.75) TO A.
DISPLAY A.
MOVE FUNCTION ASIN (1) TO A.
DISPLAY A.
Output:
-1.57
0.25
0.52
0.84
1.57
( )
ASINFUNCTION argument
VST423.vsd