HP 3000 Manuals

HP COBOL II/XL Quick Reference Guide

TAN 

The TAN function returns the tangent of an angle, expressed in radians.
The function type is numeric.

Syntax 

     FUNCTION TAN (parameter-1)

Parameters 

parameter-1           The size of an angle in radians.  Must be class
                      numeric.

MPE/iX 5.0 Documentation