# Number Systems

## The Different Systems

A Number System is simply a counting system.  Each system has its own base, or number of unique symbols.  The Decimal (Base 10) has 10 such unique symbols (0-9).  Binary has 2 (0 and 1).  Any thing above Base 10 uses a numeric and letter combination (such as Hexadecimal's 0-9 A-F).

Here is a (not complete) list of Number Systems (The "no-name" entries are commonly refered to as:  Base #):

`Public Enum NumeralSystems As Short   RomanNumerals = 0   Unary = 1   Binary = 2   Ternary = 3   Quaternary = 4   Quinary = 5   Senary = 6   Septenary = 7   Octal = 8   Novenary = 9   Undenary = 11   [Decimal] = 10   Duodecimal = 12   Tredecimal = 13   Quattuordecimal = 14   Quindecimal = 15   Hexadecimal = 16   Septendecimal = 17   Octodecimal = 18   Nonadecimal = 19   Vigesimal = 20   '   Quinquevigesimal = 25   Hexavigesimal = 26   Septemvigesimal = 27   '   Trigesimal = 30   '   Quadragesimal = 40   '   Quinquagesimal = 50   '   Sexagesimal = 60   '   Quattuorsexagesimal = 64   '   Septuagesimal = 70   '   Octagesimal = 80   '   Nonagesimal = 90   '   Centesimal = 100   '   Centivigesimal = 120   '   Bicentimal = 200   '   Tercentimal = 300   '   Quattrocentimal = 400   '   Quincentimal = 500   '   Millesimal = 1000End Enum`

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### Mitch Dusina

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