FUNCTION :  cuspwid1 - cusp width in Gamma[1](N)

CALLING SEQUENCE :  cuspwid1(a,c,N)                                          
                    

PARAMETERS :     a,c,N - integers where N>0 and (a,c)=1

SYNOPSIS :   Returns the width of the cusp a/c                     
             for the group Gamma[1](N).    
   
EXAMPLES :   

DISCUSSION :

SEE ALSO :