Online HelpPC 2.10      Quick Reference Utility     Copyright 1991 David Jurgens

 
                           double tan( double x )                           
                                                                                
                                                                                
        - prototype in math.h                                                   
                                                                                
        - returns tangent of x                                                  
        - x must be in radians                                                  
                                                                                
                                                                                
 

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