Quaternary Numeral System
Quaternary is the base-4 numeral system. It uses the digits 0, 1, 2 and 3 to represent any real number.
It shares with all fixed-radix numeral systems many properties, such as the ability to represent any real number with a canonical representation (almost unique) and the characteristics of the representations of rational numbers and irrational numbers. See decimal and binary for a discussion of these properties.
Read more about Quaternary Numeral System: Relation To Other Positional Number Systems, Occurrence in Human Languages, Hilbert Curves, Genetics, Data Transmission
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“Fear, coercion, punishment, are the masculine remedies for moral weakness, but statistics show their failure for centuries. Why not change the system and try the education of the moral and intellectual faculties, cheerful surroundings, inspiring influences? Everything in our present system tends to lower the physical vitality, the self-respect, the moral tone, and to harden instead of reforming the criminal.”
—Elizabeth Cady Stanton (1815–1902)