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                               F O R M U L A S


        Here are a few interesting formulas which I have gleaned from
        some 20 years in computers.  Some of these will be familiar to
        you, some may not.

        All of these formulas work properly.  The calendar functions
        have been tested for all dates from 1/1/1 through 12/31/5000.  
        Even though these dates are meaningless, you cam depend on the
        formulas for precision on real dates.

        If you are interested in other constants, or constants to much
        greater precision, you might want to try my BIGCALC program
        which emulates a Hewlett-Packard calculator on screen.  BIGCALC
        has a four register stack and 10 memory registers.  You can 
        specify the precision from 3 to 1000 digits.  The constants pi
        and e are provided to full precision.  BIGCALC was used to
        derive the following constants.  BIGCALC is available on the
        IBM Software and Microsoft Systems Forums on Compuserve.  The
        file is named BCALxx.ARC where xx is the revision number.

        The file FORMULAS.TXT is in ASCII form.  The file FORMULAS.PRN
        is in form suitable for IBM compatible printers and uses the
        extended character set for pi, powers, etc.  Looks better.

        I would be happy to recieve comments on this stuff, especially
        any new formulas or algorithms!  Enjoy.


                            Judson D. McClendon
                            Sun Valley Systems
                            844 Sun Valley Road
                            Birmingham, AL 35215
                               205-853-8440
                           Compuserve [74415,1003]


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                            MATHEMATICAL FORMULAS:

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                           Some Important Constants: