D
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Template:AZ The letter D is the fourth letter of the Latin alphabet.
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History
The Semitic letter Dālet probably developed from the logogram for a fish or a door. In Semitic, Ancient Greek (Modern Greek /š/) and Latin the letter was pronounced /d/, in the Etruscan alphabet the letter was superfluous but still maintained (see letter B). Greek letter: Δ (capital) or δ (small) (Delta).
Usage
The letter D generally takes the voiced alveolar plosive value, IPA in most languages that use the Roman alphabet, including English. In Welsh d when doubled (dd) has the value , like English th in this.
Digraphs of D are rare in English, although other languages use DH or DD for a voiced dental fricative (some Celtic languages) or an aspirated voiced dental plosive (some Indo-Aryan languages), or use affricates DZ, DV, or DZH.
In Cantonese, the sound means a little bit, from the ancient use of the character 的 (in the phrase "兀的") in Chinese written language. Since 的 is no longer used in this way, Hong Kong residents invented a new character 啲 (which is not supported in many Chinese systems), or simply write D instead.
Alternate representations
Delta represents the letter D in the NATO phonetic alphabet, except in airports, to avoid confusion with Delta Air Lines, in which case it is Dixie.
In international Morse code the letter D is DahDitDit: - · ·
In Braille the letter D is represented as ⠙ (in Unicode), the dot pattern,
XX .X ..
Computing
In Unicode the capital D is codepoint U+0044 and the lowercase d is U+0064.
The ASCII code for capital D is 68 and for lowercase d is 100; or in binary 01000100 and 01100100, correspondingly.
The EBCDIC code for capital D is 196 and for lowercase d is 132.
The numeric character references in HTML and XML are "D" and "d" for upper and lower case respectively.
The D programming language is a computer programming language designed by Walter Bright as a successor to C++. In addition, Tutorial D (or just D) is a language proposed by Hugh Darwen and Christopher J. Date for interfacing with relational databases. According to Bjarne Stroustrup, there have been numerous programming language proposed with the name D.
Meanings for D
- In the atmosphere of Earth, the D layer is part of the ionosphere.
- In biochemistry, D is the symbol for aspartic acid.
- In calendars, D is often an abbreviation for the month December.
- In chemistry, D is the symbol of deuterium, an isotope of hydrogen.
- In computing, D is the name of a programming language; see D programming language.
- In driving a motor vehicle, D (drive) designates the forward cruising gears in an automatic transmission.
- In economics, D is stands for demand.
- In education, D is a barely passing grade.
- In electronics, D is a standard size dry cell battery.
- In finance securities, D is the stock symbol for Dominion Resources Inc. VA
- In geometry, d is often a variable for the diameter of a circle.
- In international licence plate codes, D stands for Germany.
- In mathematics,
- d is the symbol for the differential operator.
- D is often used as a digit meaning thirteen in hexadecimal and other positional numeral systems with a radix of 14 or greater.
- In the Metric system, d, deci, is the SI prefix meaning one tenth, 10-1.
- In metrology, d is the symbol for day (this is the only symbol for this unit acceptable for use with SI)
- In music, D is a note.
- In nutrition, D is a vitamin.
- In print, D Magazine is a magazine for the city of Dallas, Texas.
- In Roman numerals, D denotes 500.
- In British currency, d is an abbreviation for the pre-decimalization pence, worth 1/240th of a pound.
- In basketball, D is often used as an abbreviation for Defence.
See also
Template:AZsubnavaf:D bs:D ca:D sn:D cs:D da:D de:D el:D als:D es:D eo:D fr:D gl:D ko:D id:D ia:D it:D la:D nl:D ja:D no:D nn:D pl:D pt:D ro:D simple:D sl:D fi:D sv:D tl:D vi:D yo:D zh:D