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Encyclopedia > Septenary
Numeral systems

Arabic (Hindu)
Arabic (Abjad)
Armenian
Attic (Greek)
Babylonian
Brahmi
Chinese
Cyrillic
D'ni (fictitious)
Egyptian
Etruscan
Greek
Hebrew
Indian
Ionian (Greek)
Japanese
Khmer
Mayan
Roman
Thai
A numeral is a symbol or group of symbols that represents a number. ... Arabic numerals (also called Hindu numerals or Indian numerals ) are the most common set of symbols used to represent numbers. ... The Abjad numerals are a numeral system which was used in the Arabic-speaking world prior to the use of the so-called Arabic numerals (which are actually of Indian origin and the ENGLISH NUMBERS are ARABIC ORIGIN not english ). In the Abjad system the letters of the arabic alphabet... Attic numerals were used by ancient Greeks, possibly from the 7th century BC. They were also known as Herodianic numerals because they were first described in a 2nd century manuscript by Herodianus. ... Babylonian numerals were written in cuneiform, using a wedge-tipped reed stylus to make a mark on a soft clay tablet which would be exposed in the sun to harden to create a permanent record. ... The Brahmi numerals are an indigenous Indian numeral system attested from the 3rd century BCE (somewhat later in the case of most of the tens). ... Cyrillic numerals was a numbering system derived from the Cyrillic alphabet, used by South and East Slavic peoples. ... Myst franchise Games Myst Riven Myst III: Exile Myst IV: Revelation Myst V: End of Ages Uru: Ages Beyond Myst Ages of: Myst Riven Myst III: Exile Myst IV: Revelation Uru Novels Myst: The Book of Atrus   Tiana   Dni Comic Books #0   #1 Miscellaneous Dni Ages   The... The Etruscan numerals were used by the ancient Etruscans. ... The system of Hebrew numerals is a quasi-decimal alphabetic numeral system using the letters of the Hebrew alphabet. ... Ionian numerals were used by the ancient Greeks, possibly before the 7th century BC. They are also known by the names Milesian numerals or Alexandrian numerals. ... Khmer numerals are the numerals used in the Khmer language of Cambodia. ... The Pre-Columbian Maya civilization used a vigesimal (base-twenty) numeral system. ... The system of Roman numerals is a numeral system originating in ancient Rome, and was adapted from Etruscan numerals. ...


Unary (1)
Binary (2)
Ternary (3)
Quaternary (4)
Quinary (5)
Senary (6)
Septenary (7)
Octal (8)
Decimal (10)
Duodecimal (12)
Hexadecimal (16)
Vigesimal (20)
Quadrovigesimal (24)
Hexavigesimal (26)
Septemvigesimal (27)
Hexatridecimal (36)
Sexagesimal (60)
The unary numeral system is the simplest numeral system to represent natural numbers: in order to represent a number N, an arbitrarily chosen symbol is repeated N times. ... The binary numeral system represents numeric values using two symbols, typically 0 and 1. ... Ternary is the base-3 numeral system. ... Quaternary is the base four numeral system. ... Quinary (base-five) is a numeral system with five as the base. ... A senary numeral system is a base-six numeral system. ... The octal numeral system is the base-8 number system, and uses the digits 0 to 7. ... Decimal, or less commonly, denary, usually refers to the base 10 numeral system. ... A duodecimal multiplication table The duodecimal (also known as base-twelve or dozenal) system is a numeral system using twelve as its base. ... In mathematics and computer science, hexadecimal, or simply hex, is a numeral system with a radix or base of 16 usually written using the symbols 0–9 and A–F or a–f. ... The vigesimal (base-twenty) is a numeral system which is based on twenty. ... As there are 24 hours in a day a numbering system based upon 24, and as the base 12 is convenient here some examples of the base 24 (quadrovigesimal) system. ... A Hexavigesimal numeral system has a base of twenty-six. ... A Septemvigesimal numeral system has a base of twenty-seven. ... Base 36 refers to a positional numeral system using 36 as the radix. ... The sexagesimal (base-sixty) is a numeral system with sixty as the base. ...

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The septenary numeral system is the base seven number system, and uses the digits 0-6. A numeral is a symbol or group of symbols that represents a number. ...


Septenary is a very good numeral system for repeating fractions, but poor for terminating fractions.

 Decimal Septimal 1/2 1/2 = 0.33333.... 1/3 1/3 = 0.22222.... 1/4 1/4 = 0.151515.... 1/5 1/5 = 0.125412541254.... 1/6 1/6 = 0.11111.... 1/7 1/10 = 0.1 1/8 1/11 = 0.060606.... 1/9 1/12 = 0.053053053... 1/10 1/13 = 0.046204620462.... 1/12 1/15 = 0.04040404.... 1/14 1/20 = 0.0333333... 1/15 1/21 = 0.031603160316.... 1/16 1/22 = 0.0303030... 1/18 1/24 = 0.025025025... 1/19 1/25 = 0.024024024... 1/20 1/26 = 0.023102310231... 1/21 1/30 = 0.0222222... 1/24 1/33 = 0.02020202.... 

With the exception of the days of the week, there is no base-7 counting system in general use. However, B. Lukács, of the Hungarian Academy of Sciences Central Research Institute for Physics, believes that linguistic analyses shows that there are lexical remnants in the Uralic group of languages (of which Hungarian and Finnish are members) that is evidence that a septimal system was in use approximately 2500 years ago by the proto-Magyar culture. A week is a unit of time longer than a day and shorter than a month. ...


See also

THE GREAT 7 by B. Lukács


  Results from FactBites:
 
Septenary (3500 words)
The simplest psychological division is probably that which divides the septenary constitution of man in three parts: an uppermost duad which is immortal, an intermediate duad which is conditionally immortal, and a lower triad which is unconditionally mortal.
The cycles of septenary evolution bring forth the spiritual or divine; intellectual and higher psychological; the lower psychological, including the passional, and the instinctual; and the semi-corporeal and purely physical natures.
The individuality is the immortal spiritual ego or monad; whereas the personality, or lower quaternary of the septenary human constitution, is the mortal human ego which goes to pieces at death.
Septenary (2753 words)
Colors are light or sight in its septenary aspect; and color, sight, and light are used almost interchangeably in speaking of the evolution of the senses and their corresponding planes of prakriti.
Iao Hebdomad (sevenfold) was one of the septenary mystery-gods of the Gnostics, given by Origen as the regent of the moon.
Again, Iao Hebdomad is the septenary Iao or the collective seven cosmic rectors, each one representing a heaven, and therefore identifying this Iao Hebdomad at once with the seven mystery-planets of the ancients.
  More results at FactBites »


 

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