TAN - Tangent

The TAN function returns the tangent of the angle or arc that is specified in radians by argument-1.
The type of this function is numeric.

Format

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FUNCTION TAN (argument-1)

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Argument

1. argument-1 must be class "numeric".

Returned values

1. The returned value is the approximation of the tangent of argument-1.

2. The error default value is - 9’999’999’999’999’999’999’999’999’999’999.

See also:        ATAN, SIN, ASIN, COS, ACOS

Example 9-45

...
DATA DIVISION.
WORKING-STORAGE SECTION.
01  R PIC S9V9(10).
01  RES PIC -9.9(10).
PROCEDURE DIVISION.
P1 SECTION.
MAIN.
    COMPUTE R = FUNCTION TAN (3.1425).
    MOVE R TO RES.
    DISPLAY RES UPON T.
    STOP RUN. 

Result:               0.0009073466