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Imaginary unit (5932 bytes)
1: In [[mathematics]], the '''imaginary unit i''' allows the [[real number]] system <math>\mat... 7: By definition, the '''imaginary unit i''' is a solution of the equation 11: Real number operations can be extended to imaginary and [[complex number]]s by treating i as an unkno... 30: ...eometric choice of which "direction" around the [[unit circle]] is "positive". A more precise explanatio... 34: The imaginary unit is sometimes written <math>\sqrt{-1}</math> in ad... Imaginary memories (1447 bytes) 1: '''Imaginary memories''' is a very severe psychological disord... Imaginary number (5086 bytes) 1: ...matics]], an '''imaginary number''' (or '''purely imaginary number''') is a [[complex number]] whose [[square... 5: ...th> are [[real number]]s and i is the [[imaginary unit]] with the property that 9: ...only complex number which is both real and purely imaginary. 13: ...ownwards. This vertical axis is often called the "imaginary axis" and is denoted <math>\mathrm{i}\mathbb{R}</... 15: ...ion <math>x^2 = -1</math> — see [[imaginary unit]]. Imaginary country (825 bytes) 1: An '''imaginary country''' or '''fantasy country''' is often impo... 3: ... sometimes be difficult to distinguish between an imaginary country, which does not even attempt to make any ... 5: There are also [[imaginary union]]s, such as the [[International Union of Ma... 12 Imaginary Images (484 bytes) 1: '''''12 Imaginary Images''''' is an [[album]] released by the [[197... Imaginary friend (1550 bytes) 1: An '''imaginary friend''' is a friend that is created in the mind... 3: ... language]]. Many [[autism|autistic]] people have imaginary friends right into their [[adulthood]] and for a ... 5: ...from their intimate relations. The development of imaginary friends by young children and autistics does not ... 7: ...derstanding of a child's conversations with their imaginary friends can reveal a lot about the anxieties and ... 9: ...upagus]], [[Drop Dead Fred]], [[Foster's Home for Imaginary Friends]] Imaginary part (747 bytes) 1: ...'', i.e. if <math>z=x+\mathrm{i}y</math> then the imaginary part of <math>z</math> is <math>y</math>. 3: ...e [[complex conjugate]] <math>\bar{z}</math>, the imaginary part of ''z'' is equal to <math>\frac{z-\bar{z}}{... 5: The imaginary part of <math>z</math> is denoted <math>\mbox{Im}... 7: ...n as <math>re^{\mathrm{i}\theta}</math>, then the imaginary part is <math>r\sin\theta</math>. (See [[Euler's ... 11: *[[Imaginary number]] Three Imaginary Boys (4639 bytes) 5: ...ign="center" bgcolor="orange" colspan="3"|''Three Imaginary Boys'' 7: |align="center" colspan="3"|[[Image:TheCureThreeImaginaryBoysalbumcover.jpg|Album cover]] 38: |valign="top"|<small>''Three Imaginary Boys''<br />([[1979]])</small> 44: ...'s debut album. It was later re-released in the [[United States|USA]] with a slightly different song lin... 46: The Cure were a trio when ''Three Imaginary Boys'' was released, and the album is sparse and ... Book of Imaginary Beings (384 bytes) 1: ...rge Luis Borges]] wrote and edited the '''Book of Imaginary Beings''' in [[1969]], expanding his original [[1... Quater-imaginary base (4215 bytes) 1: ...earch. It is a positional system which uses the [[imaginary number]] 2''i'' as base. By analogy with the [[qu... 46: ==Decimal to Quater-Imaginary== Foster's Home for Imaginary Friends (10402 bytes) 1: {{mergefrom}} [[Foster's Home of Imaginary Friends]]. 2: ...: Bloo, Madame Foster, Mac]]'''Foster's Home for Imaginary Friends''' is an [[animation|animated]] [[televis... 5: ...forgotten." Children who cannot imagine their own imaginary friends can also [[adoption|adopt]] friends from ... 7: ... brother Terrence think Mac is too old to have an imaginary friend and want the troublemaking Bloo out of the... 15: ...t) is a short blue blob with no legs. He is Mac's imaginary friend. He has a short attention span and is quit... Foster's Home of Imaginary Friends (622 bytes) 1: {{merge}} [[Foster's Home for Imaginary Friends]]. 2: ...ve him up so he brings him to a home for unwanted imaginary friends. The home is run by Mrs. Foster who owns ... Class number problem for imaginary quadratic fields (2153 bytes) 1: ...rovide for each ''n'' ≥ 1 a complete list of [[imaginary quadratic field]]s with [[class number]] ''n''. T... 7: ...log ε, where ε is a [[fundamental unit]]. This extra factor is hard to control. It may w... G-Unit (1142 bytes) 1: '''G-Unit''' is a rap group which consists of [[50 Cent]], ... 8: *[http://www.g-unitsoldier.com/ Official Site] 10: [[Category:Hip hop groups|G-Unit]] Unit (3325 bytes) 1: The word '''''unit''''' means any of several things: 5: ...ss]], [[distance]], and [[time]]. Such systems of units include 6: ... system of units (MKS)]]), the most commonly used units worldwide 7: ...commonly used worldwide; also one of two standard unit systems in [[astronomy]] 8: ...cond system of units|Metre-Tonne-Second system of units (MTS)]], little used DI unit (5046 bytes) 1: A '''DI unit''' or '''DI box''' is an electronic device design... 3: ... ''direct injection'' or ''direct interface''. DI units are extensively used with professional and semi-... 5: ...two types, ''active'' DI units and ''passive'' DI units. 7: ==Passive DI units== 9: A passive DI unit typically consists of an audio [[transformer]] us... X unit (1517 bytes) 1: ...e crystals used in the measuring apparatus. One X-unit was set at 1/3029.04 of the spacing of the (200) ... 3: The '''copper X-unit''' (symbol '''xu(CuKα1)''') is calibrated by... 4: Similarly, the '''molybdenum X-unit''' (symbol '''xu(MoKα1)''') sets the Kα... 6: ...es, and he succeeded admirably. In his honour the unit was also called the '''Siegbahn'''. 10: [[Category:Units of length]] Unit 4 Plus 2 (657 bytes) 1: ...ns)|technical limitations]]. The correct title is Unit 4 + 2.'' 3: '''Unit 4 + 2''' was a [[United Kingdom|British]] band which had a hit in [[196... A unit (1614 bytes) 1: ...ace to build [[B unit]]s—cabless locomotive units which could not lead a train. 3: ...k all of these features, except that some [[EMD F-unit]]s have an extra porthole-style side window(s) fo... 5: ...e rare cabless road switchers were still called B units. B unit (4293 bytes) 1: ...driving cab (an [[A unit]]). The term '''booster unit''' is also used. The concept was largely confine... 3: ...generally semi-permanently coupled to controlling units. 5: ...n the intermediate units having cabs. Finally, B units gave a smoother line to the train for passenger ... 7: ...worth the lack of operational flexibility. Few B units have been built in the last 40 years. 9: == List of B unit locomotive models ==
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