Encodings
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Code
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Mathematical notation
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Lexicology
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Lexis (linguistics)
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Grapheme
Numeral system
A numeral system (or system of numeration) is a writing system for expressing numbers, that is, a mathematical notation for representing numbers of a given set, using digits or other symbols in a cons...
Numeral system - Wikipedia
Positional notation
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Counting instruments
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Finger counting
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Hexadecimal
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Number
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Numerals
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Positional numeral systems
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Subtractive notation - Slideshow
Positional notation
Positional notation or place-value notation is a method of representing or encoding numbers. Positional notation is distinguished from other notations (such as Roman numerals) for its use of the same ...
Counting instruments
Finger counting
Finger-counting, or dactylonomy, is the act of counting along one's fingers. Though marginalized in modern societies by Arabic numerals, formerly different systems flourished in many cultures, includ...
Hexadecimal
In mathematics and computing, hexadecimal (also base 16, or hex) is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent ...
Hexadecimal - Wikipedia
Number
A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, and so forth. A notational symbol that represents a number is called a numer...
Numerals
Numeral may refer to:
Positional numeral systems
Jacques Pelletier du Mans
Jacques Pelletier du Mans, also spelled Peletier, in Latin: Peletarius, (1517–1582) was a humanist, poet and mathematician of the French Renaissance.Born at Le Mans into a bourgeois family, he studied...
Pace count beads
Pace count beads or ranger beads is a manual counting tool used to keep track of distance travelled through a pace count.
The tool is usually constructed using a set of 14 or more beads on a lengt...
Pace count beads - Wikipedia
Sexagesimal
Sexagesimal (base 60) is a numeral system with sixty as its base. It originated with the ancient Sumerians in the 3rd millennium BC, it was passed down to the ancient Babylonians, and it is still used...
Sexagesimal - Wikipedia
Metric prefix
A metric prefix or SI prefix is a unit prefix that precedes a basic unit of measure to indicate a decadic multiple or fraction of the unit. Each prefix has a unique symbol that is prepended to the uni...
Tera-
Tera is a unit prefix in the metric system denoting multiplication by 10 or 1000000000000. It has the symbol T. Tera is derived from Greek word τέρας teras, meaning “monster”. The prefix tera was conf...
Suzhou numerals
The Suzhou numerals or huama is a numeral system used in China before the introduction of Arabic numerals.
The Suzhou numeral system is the only surviving variation of the rod numeral system. The ...
Suzhou numerals - Wikipedia
Deci-
Deci (symbol d) is a unit prefix in the metric system denoting a factor of one tenth. Adopted in 1795, the prefix comes from the Latin decimus, meaning tenth. Its most frequent use is in the non-SI ...
-yllion
-yllion is a proposal from Donald Knuth for the terminology and symbols of an alternate decimal superbase system. In it, he adapts the familiar English terms for large numbers to provide a systematic ...
-yllion - Wikipedia
Subtractive notation
Subtractive notation is an early form of positional notation used with Roman numerals as a shorthand to replace four or five characters in a numeral representing a number with usually just two charact...
Hexadecimal geographic coordinate system
The Tonal system is a base 16 system of notation (predating hexadecimal), arithmetic, and metrology proposed in 1859 by John W. Nystrom. In addition to new weights and measures, his proposal included...
Hexadecimal geographic coordinate system - Wikipedia
Hexspeak
Hexspeak, like leetspeak, is a novelty form of variant English spelling using the hexadecimal numbers. Created by programmers who wanted a magic number, hexspeak words can serve as a clear and unique ...
Excess-3
3 binary 3 or Stibitz code, also called biased representation or Excess-N, is a complementary BCD code and numeral system. Excess-3 was used on some older computers as well as in cash registers and ha...
Vigesimal
The vigesimal or base 20 numeral system is based on twenty (in the same way in which the ordinary decimal numeral system is based on ten).
In a vigesimal place system, twenty individual numerals (...
Vigesimal - Wikipedia
Gray code
The reflected binary code, also known as Gray code after Frank Gray, is a binary numeral system where two successive values differ in only one bit (binary digit).The reflected binary code was original...
Gray code - Wikipedia
Number - Economic expert.com
Midy's theorem
In mathematics, Midy's theorem, named after French mathematician E. Midy, is a statement about the decimal expansion of fractions a/p where p is a prime and a/p has a repeating decimal expansion with...
Midy's theorem - Wikipedia
Nicolas Chuquet
Nicolas Chuquet ([ʃykɛ]; 1445, but some sources say c. 1455, Paris, France – 1488, some sources say c. 1500, Lyon, France) was a French mathematician. He invented his own notation for algebraic ...
Nicolas Chuquet - Wikipedia
Egyptian numerals
The system of ancient Egyptian numerals was used in Ancient Egypt in around 3000 BC until the early first millennium AD. It was a system of numeration based on the scale of ten, often rounded off to t...
Computer number format
A computer number format is the internal representation of numeric values in digital computer and calculator hardware and software. Normally, numeric values are stored as groupings of bits, named for...