Function          Jul... - family of Julian date conversion
                               functions

  Syntax            double JultoCal(double jul);
                    double JultoCalCent(double jul);
                    char *JultoGreg(double jul);
                    char *JultoGregEuro(double jul);
                    char *JultoGregJap(double jul);
                    struct ddate *Jultoddate(double jul);

                    double JulAtoCal(double jul);
                    double JulAtoCalCent(double jul);
                    char *JulAtoGreg(double jul);
                    char *JulAtoGregEuro(double jul);
                    char *JulAtoGregJap(double jul);
                    struct ddate *JulAtoddate(double jul);

                    double JulBtoCal(double jul);
                    double JulBtoCalCent(double jul);
                    char *JulBtoGreg(double jul);
                    char *JulBtoGregEuro(double jul);
                    char *JulBtoGregJap(double jul);
                    struct ddate *JulBtoddate(double jul);

  Prototype in      datehk.h

  Remarks           Jul.toCal      converts a Julian date to Calendar
                                   date
                    Jul.toCalCent  converts a Julian date to Calendar
                                   date (w/century)
                    Jul.toGreg...  converts a Julian date to the
                                   appropraite Gregorian date
                    Jul.toddate    converts a Julian date to struct ddate

  Return value      Jul.toCal return a Calendar date
                    Jul.toCalCent return a Calendar date (w/century)
                    Jul.toGreg.. return the appropriate Gregorian date
                    Jul.toddate return a struct ddate

  See also          Appendix A
                    Cal...(), date_convert(), ddatetofull(),
                    ddatetoshort(), ddatetostr(), fulltoddate(),
                    Greg...(), monthexpand(), shorttoddate(),
                    strtoddate()

  Example           see demodate.c