This HTML5 document contains 48 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

Prefix	IRI
n6	http://qudt.org/vocab/quantitykind/
dcterms	http://purl.org/dc/terms/
n4	http://qudt.org/vocab/sou/
n3	http://qudt.org/schema/qudt/
n2	http://qudt.org/vocab/unit/
n7	http://qudt.org/vocab/dimensionvector/
rdfs	http://www.w3.org/2000/01/rdf-schema#
n10	http://qudt.org/2.1/vocab/
rdf	http://www.w3.org/1999/02/22-rdf-syntax-ns#
xsdh	http://www.w3.org/2001/XMLSchema#
n8	http://www.ontology-of-units-of-measure.org/resource/om-2/

Statements

Subject Item

n2:RAD

rdf:type

n3:DerivedUnit n3:Unit

rdfs:label

radian 弧度 radian ακτίνιο radián радиан radian radián радиан radian radian رادیان ラジアン radian radián वर्ग मीटर radiante راديان Radiant radiano רדיאן radyan radian

rdfs:isDefinedBy

n10:unit

rdfs:comment

The radian and steradian are special names for the number one that may be used to convey information about the quantity concerned. In practice the symbols rad and sr are used where appropriate, but the symbol for the derived unit one is generally omitted in specifying the values of dimensionless quantities.

dcterms:description

The radian is the standard unit of angular measure, used in many areas of mathematics. It describes the plane angle subtended by a circular arc as the length of the arc divided by the radius of the arc. In the absence of any symbol radians are assumed, and when degrees are meant the symbol \(^{\ circ}\) is used.

n3:dbpediaMatch

http://dbpedia.org/resource/Radian

n3:exactMatch

n2:MilliARCSEC

n3:hasDimensionVector

n7:A0E0L0I0M0H0T0D1

n3:informativeReference

http://en.wikipedia.org/wiki/Radian?oldid=492309312

n3:plainTextDescription

The radian is the standard unit of angular measure, used in many areas of mathematics. It describes the plane angle subtended by a circular arc as the length of the arc divided by the radius of the arc. The unit was formerly a SI supplementary unit, but this category was abolished in 1995 and the radian is now considered a SI derived unit. The SI unit of solid angle measurement is the steradian. The radian is represented by the symbol "rad" or, more rarely, by the superscript c (for "circular measure"). For example, an angle of 1.2 radians would be written as "1.2 rad" or "1.2c" (the second symbol is often mistaken for a degree: "1.2u00b0"). As the ratio of two lengths, the radian is a "pure number" that needs no unit symbol, and in mathematical writing the symbol "rad" is almost always omitted. In the absence of any symbol radians are assumed, and when degrees are meant the symbol u00b0 is used. [Wikipedia]

n3:symbol

rad

n3:hasQuantityKind

n6:PlaneAngle n6:Angle

n3:applicableSystem

n4:CGS-GAUSS n4:SI n4:CGS n4:CGS-EMU

n3:conversionMultiplier

1

n3:definedUnitOfSystem

n4:SI

n3:iec61360Code

0112/2///62720#UAA966

n3:omUnit

n8:radian

n3:ucumCode

rad

n3:udunitsCode

rad

n3:uneceCommonCode

C81

n3:guidance

<p>See NIST section <a href="http://physics.nist.gov/Pubs/SP811/sec07.html#7.10">SP811 section7.10</a></p>