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Look up C or c in Wiktionary, the free dictionary.

[edit] Computing

C (programming language), developed at Bell Labs in 1972
C++, an object oriented programming language based on C
Objective-C, an object oriented programming language based on C, while available on various platforms, used mainly on Mac OS X
C# (programming language), developed at Microsoft in 2001
C (digit), a hexadecimal digit
C (magazine), a defunct Finnish computer magazine
Control-C, a keyboard control code
C, a Computable function, the set of all computable decision problems.
C:\, or "Drive C", the default letter configuration for the default hard drive in MS-DOS, PC-DOS, and Microsoft Windows.

[edit] Technology

C battery (size)
C battery (type), grid bias battery for vacuum tube radios
Battery charging rate. Signifies a charge or discharge rate equal to the capacity of a battery divided by 1 hour. For example C for a 1600 mAh battery would be 1600 mA (or 1.6 amps). 2C is twice this rate and 1/2C is half the rate.
C-clamp, a type of fastener
C band, radio frequency band from 4 GHz to 6 GHz
C, the standard abbreviation for an electronic capacitor, used e.g. in circuit diagrams

[edit] Science

Vitamin C
Haplogroup C (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
Haplogroup C (Y-DNA), a Y-chromosomal DNA (Y-DNA) haplogroup
ATC code C Cardiovascular system, a section of the Anatomical Therapeutic Chemical Classification System
C1 to C7, cervical vertebrae
C, chemical symbol for the element carbon
C, a prefix for astronomical objects listed in the Caldwell catalogue
c, the speed of light in a vacuum
c, the speed of sound
c, the specific heat of a substance
Cytosine, nucleic acid
C, Capacitance
Cysteine

[edit] Transportation

Line C used in several public transport systems
NZR C class (1873) train
NZR C class (1930) train
C, or 0-6-0 classification, a type of locomotive with three powered axles

[edit] Symbols

©, copyright
¢, cent

[edit] Mathematics

A digit meaning twelve in hexadecimal and other positional numeral systems with a radix of 13 or greater
C, the Constant of integration
Ⅽ, in Roman numerals, the symbol for 100
ℂ or $\mathbb{C}$ , the set of all complex numbers
ℭ or $\mathfrak c$ , the cardinality of the continuum
C, the set of continuous functions
- $C^0, C^1, C^2, \dots, C^\infty$ , differentiability classes
In probability theory, the combination or "choose" function, phrased as "choose n objects k at a time" or "n choose k", using the notations
$\mathbf{C}(n,k)$ , $\mathbf{C}_k^n$ , $\mathbf{_nC_k}$ , or ${n \choose k}$

[edit] Measurement

c., or circa, an approximate date or other value
°C, degrees Celsius
C, for Carat (purity)
c, Centi-, an SI prefix
C, Coulomb, the SI derived unit for electric charge
c, Cup (unit), a unit of volume

[edit] Music

C (musical note)
C major, C minor, C sharp major, C sharp minor musical keys based on the note C

[edit] People

C, alias for Mansfield Smith-Cumming (1859-1923), Chief of the SIS, the UK Secret Intelligence Service, also known as MI6
- His successors as Chief of the SIS have since been generally known by his alias, C.

[edit] Other uses

C (plastic toy), a plastic toy from former Czechoslovakia
C (grade), a satisfactory grade in education
Citigroup, Inc. Stock Symbol for Citigroup.
Centre position in Australian rules football
C, the NYSE ticker for Grupo Financiero Banamex
[c], the IPA's symbol for the voiceless palatal plosive

[edit] See also

Latin letter disambiguation
A • B • C • D • E • F • G • H • I • J • K • L • M • N • O • P • Q • R • S • T • U • V • W • X • Y • Z

This disambiguation page lists articles associated with the same Latin letter. If an internal link led you here, you may wish to change the link to point directly to the intended article.

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