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Ellipse (other)
In mathematics, an ellipse is a geometrical figure. Ellipse may also refer to: *MacAdam ellipse, an area in a chromaticity diagram * Elliptic leaf shape *Superellipse, a geometric figure As a name, it may also be: *The Ellipse, an area in Washington, D.C., United States *Ellipse Programmé, a French animation studio *Elipse, a Yugoslav rock band * ''Ellipse'', a 2009 album by Imogen Heap *"Ellipse", a song from the album ''In Silence We Yearn'' by Oh Hiroshima *Explorer Ellipse, an American homebuilt aircraft design *La société Ellipse, a French aircraft manufacturer Similar terms *Ellipsis, a punctuation mark *Ellipsis, a rhetorical suppression of words to give an expression more liveliness *Eclipse, an astronomical event * Elliptical (trainer), a stationary exercise machine See also * Ellipsis (other) An ellipsis is a punctuation mark comprised a series of dots: ... "Ellipsis" may also refer to: Arts * Ellipsis (narrative device) Ellipsis is the narrative d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellipse
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. It generalizes a circle, which is the special type of ellipse in which the two focal points are the same. The elongation of an ellipse is measured by its eccentricity e, a number ranging from e = 0 (the limiting case of a circle) to e = 1 (the limiting case of infinite elongation, no longer an ellipse but a parabola). An ellipse has a simple algebraic solution for its area, but only approximations for its perimeter (also known as circumference), for which integration is required to obtain an exact solution. Analytically, the equation of a standard ellipse centered at the origin with width 2a and height 2b is: : \frac+\frac = 1 . Assuming a \ge b, the foci are (\pm c, 0) for c = \sqrt. The standard parametric equation is: : (x,y) = (a\cos(t),b\sin(t)) \quad \text \quad 0\leq t\leq 2\pi. Ellip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MacAdam Ellipse
In the study of color vision, a MacAdam ellipse is a region on a chromaticity diagram which contains all colors which are indistinguishable, to the average human eye, from the color at the center of the ellipse. The contour of the ellipse therefore represents the just-noticeable differences of chromaticity. Standard Deviation Color Matching in LED lighting uses deviations relative to MacAdam ellipses to describe color precision of a light source. History In the study of color perception, the first question that usually comes to mind is, "What color is it?" In other words, we wish to develop a method of specifying a particular color which allows us to differentiate it from all other colors. It has been found that three quantities are needed to specify a particular color. The relative amounts of red, green and blue in a color will serve to specify that color completely. This question was first approached by a number of researchers in the 1930s, and their results were formalized in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Leaf Shapes
The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular or irregular, may be smooth or bearing hair, bristles or spines. For more terms describing other aspects of leaves besides their overall morphology see the leaf article. The terms listed here all are supported by technical and professional usage, but they cannot be represented as mandatory or undebatable; readers must use their judgement. Authors often use terms arbitrarily, or coin them to taste, possibly in ignorance of established terms, and it is not always clear whether because of ignorance, or personal preference, or because usages change with time or context, or because of variation between specimens, even specimens from the same plant. For example, whether to call leaves on the same tree "acuminate", "lanceolate", or "linear" could ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superellipse
A superellipse, also known as a Lamé curve after Gabriel Lamé, is a closed curve resembling the ellipse, retaining the geometric features of semi-major axis and semi-minor axis, and symmetry about them, but a different overall shape. In the Cartesian coordinate system, the set of all points (x,y) on the curve satisfy the equation :\left, \frac\^n\!\! + \left, \frac\^n\! = 1, where n,a and b are positive numbers, and the vertical bars around a number indicate the absolute value of the number. Specific cases This formula defines a closed curve contained in the rectangle −''a'' ≤ ''x'' ≤ +''a'' and −''b'' ≤ ''y'' ≤ +''b''. The parameters ''a'' and ''b'' are called the ''semi-diameters'' of the curve. The overall shape of the curve is determined by the value of the exponent ''n'', as shown in the following table: If ''n'' 2, a hyperellipse. When ''n'' ≥ 1 and ''a'' = ''b'', the superellipse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Ellipse
The Ellipse (sometimes referred to as President's Park South) is a park south of the White House fence and north of Constitution Avenue and the National Mall in Washington, D.C. The Ellipse is also the name of the circumference street within the park. The entire park, which features monuments, is open to the public and is part of President's Park. The Ellipse is the location for many annual events. From a mathematical point of view, the Ellipse is truly an ellipse. Its dimensions are for its major axis (east-west) and for its minor axis (north-south). Its eccentricity computes as e = 0.52 and its foci are apart, each from the center of the ellipse (east and west). History In 1791, the first plan for the park was drawn up by Pierre (Peter) Charles L'Enfant. The Ellipse was known as "the White Lot" due to the whitewashed wooden fence that enclosed the park. During the American Civil War, the grounds of the Ellipse and the incomplete Washington Monument were used as corrals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellipsanime
Ellipsanime (formerly known as Le Studio Ellipse, Ellipse Programme and Ellipse Animation) is a French animation studio that produces television programs. It was founded in 1987. In February 2000 it merged with Expand SA; Expand sold the company to Dargaud in 2003, and it became Ellipsanime in 2004. In 2014, Ellipsanime bought the assets of Moonscoop SA. Ellipse has worked with many other animation companies, with one good example being the Canadian animation firm Nelvana Limited. Their early collaboration goes back to the television animated adaptation of the My Pet Monster franchise in 1987. The first official collaboration was in 1989 following the release of Nelvana and Ellipse's co-production, the Babar Movie in 1989. They then worked on the Babar animated series, revival from 2000. In 1991, Ellipse produced Doug, Nickelodeon's first original animated series, and produced in association with Jumbo Pictures and Nickelodeon Animation Studio. Nelvana has since co-produce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elipse
Elipse ( sr-Cyrl, Елипсе; trans. ''The Ellipses'') were a Yugoslav rock band formed in Belgrade in 1962. The band were one of the pioneers of the Yugoslav rock scene. Elipse initially performed beat music and rhythm and blues. With the arrival of vocalist Edi Dekeng, the band added a brass section and moved towards soul music. During the six years of the band's activity, they were one of the most popular bands in Yugoslavia. Their releases and live performances were praised by the press, and the Yugoslav media compared their rivalry with the band Siluete to the one between The Beatles and The Rolling Stones. After the group disbanded in 1968, bass guitarist Bojan Hreljac and drummer Vladimir Furduj would join Korni Grupa, and keyboardist Zoran Simjanović would go on to become one of the most notable composers of film music in the Balkans. History The beat and rhythm and blues years (1962-1967) The band was formed in 1962 by Momčilo "Moma" Radovanović (gui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellipse (album)
''Ellipse'' is the third studio album from British singer-songwriter Imogen Heap. After returning from a round the world writing trip, Heap completed the album at her childhood home in Essex, converting her old playroom in the basement into a studio. The album got its name from the distinctive elliptical shape of the house. The album's title was confirmed by Heap via her Twitter page on 25 April 2009, after being leaked onto the internet on 23 April. On 15 June, Heap confirmed that the album would be released on 24 August 2009 in the United Kingdom on Megaphonic Records and 25 August in North America on RCA Records and Epic Records and distributed by Sony BMG. Subject matter in the songs includes post break-up malaise ("Wait It Out"), domestic boredom ("Little Bird"), body image issues ("Bad Body Double") and a common Heap theme, unrequited love ("Swoon" and "Half Life"). On 17 August 2009 Heap made the album available for live streaming via her webpage. The album can no longer b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
In Silence We Yearn
''In Silence We Yearn'' is the second studio album by the Swedish post-rock band Oh Hiroshima, self-released digitally in November 2015. The album was re-released on CD on 1 July 2016 by Fluttery Records and on vinyl on 2 December by Napalm Records. In December 2016, American webzine ''Somewherecold'' ranked ''In Silence We Yearn'' No. 9 on their "Somewherecold Awards 2016" list. Track listing Personnel * Jakob Hemström – guitars and vocals * Leif Eliasson – guitars * Oskar Nilsson – drums A drum kit (also called a drum set, trap set, or simply drums) is a collection of drums, cymbals, and other Percussion instrument, auxiliary percussion instruments set up to be played by one person. The player (drummer) typically holds a pair o ... * Simon Axelsson – bass guitar References External links ''In Silence We Yearn''by Oh Hiroshima on Bandcamp 2015 albums Oh Hiroshima albums {{2010s-post-rock-album-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Explorer Ellipse
The Explorer Ellipse is an American homebuilt aircraft that was designed by Dean Wilson and produced by Explorer Aviation of Grangeville, Idaho. When it was available the aircraft was supplied as a kit for amateur construction.Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition'', page 153. BAI Communications, 15 July 1998. Design and development The Ellipse features a strut-braced high-wing that has an elliptical planform, a four-seat enclosed cabin with doors, fixed conventional landing gear and a single engine in tractor configuration. The aircraft fuselage is made from welded 4130 steel tubing with a wooden wing. The aircraft is covered in doped aircraft fabric. Its span wing, mounts flaps and has a wing area of . The wings can be folded in five minutes by one person to facilitate ground transportation or storage. The cabin width is . The acceptable power range is and the standard engine used is the Lycoming O-320 powerplant. With this powerpl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Société Ellipse
Ellipse is a French aircraft manufacturer, located in Étuz. The company specializes in building hang gliders and ultralight trikes.Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 43. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X The company also builds the DTA Diva, DTA Dynamic and DTA Magic The DTA Magic is a French double-surface ultralight trike wing, designed and produced by DTA sarl of Montélimar and introduced in 2010. The trike wing was the first "topless" design to be offered by a French manufacturer.Bayerl, Robby; Mar ... ultralight trike wings under contract to DTA sarl.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 208-210. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X Aircraft References External links * {{Ellipse aircraft Aircraft manufacturers of France Hang gliders Ultralight trikes Companies based in Bourgogne-Franche-Comté ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellipsis
The ellipsis (, also known informally as dot dot dot) is a series of dots that indicates an intentional omission of a word, sentence, or whole section from a text without altering its original meaning. The plural is ellipses. The term originates from the grc, ἔλλειψις, meaning 'leave out'. Opinions differ as to how to render ellipses in printed material. According to ''The Chicago Manual of Style'', it should consist of three periods, each separated from its neighbor by a non-breaking space: . According to the ''AP Stylebook'', the periods should be rendered with no space between them: . A third option is to use the Unicode character U+2026 . Background The ellipsis is also called a suspension point, points of ellipsis, periods of ellipsis, or ( colloquially) "dot-dot-dot".. According to Toner it is difficult to establish when the "dot dot dot" phrase was first used. There is an early instance, which is perhaps the first in a piece of fiction, in Virginia Woolf' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
