wiktionarypar curve A curve is a geometrical object in mathematics. Curve may also refer to Music Curve band , an English music group Curve Doc Walker album Curve Doc Walker album , a 2001 album by Doc Walker Curve Our Lady Peace album Curve Our Lady Peace album , a 2012 album by Our Lady Peace Others Curve magazine Curve magazine , a U.S. lesbian magazine Curve design magazine Curve design magazine , an industrial design magazine Curve theatre , a theatre in Leicester, United Kingdom Curve tonality , a software technique for image manipulation Curve, fragrance by Liz Claiborne Grading curve , a system of grading students BlackBerry Curve , a series of phones from Research In Motion French curve , a template made out of plastic, metal or wood used to draw smooth curves Flat spline , a very flexible rule used to draw curves Curves may refer to Curves International , an international fitness franchise Female body shape See also The Curvedisambiguation Curvature Curveball disambig de Curve eu Kurba argipena fr Curve ko ja ... more details
A horseshoe curve is a track layout used to reduce the gradient a train must travel uphill. Horseshoe Curve may also refer to Horseshoe Curve Pennsylvania , National Historic Landmark The Horseshoe Curve , an album by Trey Anastasio disambiguation ... more details
Yield curve or Yield spread curve can refer to In Economics Yield curve The spread between long term and short term Treasuries Z spread Also known as yield spread curve, the flat spread over the treasury yield curve In Materials Science Yield curve physics Yield curve A graphical depiction of the behavior of a plastic material disambig ... more details
Dead Man s Curve may refer to Dead Man s Curve , used in the U.S. to refer to a stretch of road that has claimed a number of lives Dead Man s Curve song Dead Man s Curve song , a song by Jan & Dean Dead Man s Curve Frank Black song Dead Man s Curve Frank Black song , a song by Frank Black Deadman s Curve , Jan & Dean biopic Dead Man s Curve band , a London surf music band The Curve film The Curve , a film which was originally called Dead Man s Curve an informal name for the height velocity diagram , a chart that outlines the combination of height and velocity necessary to maintain safe helicopter operation in the event of engine failure disambig ... more details
A learning curve is a relationship of the duration or the degree of effort invested in learning and experience with the resulting progress, considered as an exploratory discovery process. Learning Curve may also refer to Experience curve s Regularly observed reduction in costs of manufacturing & delivery with increased experience. Associated mathematical models Learning Curve Babylon 5 Learning Curve Babylon 5 , an episode of the science fiction television series Babylon 5 Learning Curve Stargate SG 1 Learning Curve Stargate SG 1 , an episode of the science fiction television series Stargate SG 1 Learning Curve Voyager episode Learning Curve Voyager episode , an episode of the science fiction television series Star Trek Voyager The Learning Curve , a 2001 thriller film Learning Curve 1998 film , a 1998 film about a substitute teacher in a public school, also goes by the name Detention 1998 Learning Curve , an album by British DJ DJ Rap Learning Curve Brands , a designer and manufacturer of products for infants and children of all ages disambig ... more details
The Curve may refer to The Curve film , a 1998 thriller neo noir film The Curve Theatre, Leicester, UK. Curve theatre The Curve, an art gallery within Barbican Centre , London, UK The Curve shopping mall , a shopping mall in Malaysia See also Curvedisambiguationdisambiguation ... more details
S Curve can refer to the following S Curve art , an art term for a sinuous body position, noted in ancient marble sculpture Sigmoid function , a mathematical function that produces a sigmoid curve or a curve having an S shape S Curve Records , a record label Reverse curve , a type of horizontal curve disambig fr Courbe en S ... more details
other uses File Parabola.svg right thumb A parabola , a simple example of a curve In mathematics , a curve ... line is a special case of curve, namely a curve with null curvature . ref In current language, a line ... instances of the definition which follows. A curve is a topological space which is locally homeomorphic to a line. In every day language, this means that a curve is a set of points which, near each of its points, looks like a line, up to a deformation. A simple example of a curve is the parabola ... mathematical fields. The term curve has several meanings in non mathematical language as well. For example, it can be almost synonymous with mathematical function as in learning curve , or graph of a function as in Phillips curve . An Arc geometry arc or segment of a curve is a part of a curve that is bounded by two distinct end points and contains every point on the curve between its end points ... of the more modern term curve . Hence the phrases straight line and right line were used to distinguish ... was the advent of analytic geometry in the seventeenth century. This enabled a curve to be described ... be defined using algebraic equation s, algebraic curve s, and those that cannot, transcendental curve s. Previously, curves had been described as geometrical or mechanical according to how they were ... curves, in general. Newton had studied the cubic curve s, in the general description of the real ... the nineteenth century there is not a separate curve theory, but rather the appearance of curves ... , when for example the Jordan curve theorem was understood to lie quite deep, as well as being required in complex analysis . The era of the space filling curve s finally provoked the modern definitions of curve. Topology File Mandelbrot Components.svg 250px right thumb Boundaries of hyperbolic components of Mandelbrot set as closed curves In topology , a curve is defined as follows. Let math I math ... connected subset of math mathbb R math . Then a curve math , gamma math is a continuous function ... more details
Butterfly curve may refer to Butterfly curve algebraic , a curve defined by a trinomial Butterfly curve transcendental , a curve based on sine functions disambig Category Mathematical disambiguation es Curva mariposa it Curva a farfalla ... more details
wiktionary bell shaped bell curve bell curves Bell curve may refer to A Gaussian function , a specific kind of function whose graph is a bell shaped curve Normal distribution Normal Gaussian distribution , whose density function is a Gaussian function The Bell Curve , a 1994 book by Richard J. Herrnstein and Charles Murray Bell curve grading , a method of evaluating scholastic performance disambiguation DEFAULTSORT Bell Curve Category Mathematical disambiguation ... more details
Other uses Vertex disambiguation Image Ellipse evolute.svg right thumb 240px An ellipse red and its evolute blue . The dots are the vertices of the curve, each corresponding to a cusp on the evolute. In the geometry of curve s, a vertex is a point of where the first derivative of curvature is zero. This is typically a local Maxima and minima maximum or minimum of curvature. Other special cases may occur, for instance when the second derivative is also zero, or when the curvature is constant. For a circle which has constant curvature, every point is a vertex. The four vertex theorem states that every closed curve must have at least four vertices. Vertices are points where the curve has Contact mathematics Contact between curves 4 point contact with the osculating circle at that point. The evolute of a curve will generically have a cusp singularity cusp when the curve has a vertex. Other, more degenerate and non stable singularities occur at higher vertices. Higher vertices generically occur in a one parameter family of curves when two ordinary vertices coalesce to form a higher vertex after which they annihilate. The symmetry set has endpoints at the cusps corresponding to the vertices, and the medial axis , a subset of the symmetry set , also has its endpoints in the cusps. If a curve is reflection symmetry bilaterally symmetric , it will have a vertex at the point or points where the axis of symmetry crosses the curve. Thus, the notion of a vertex for a curve is closely related to that of an vertex optics optical vertex , the point where an optical axis crosses a Lens optics lens surface. Vertices of a conic section A hyperbola has two vertices, one on each branch they are the closest of any two points lying on opposite branches of the hyperbola, and they lie on the principal axis. On a parabola, the sole vertex lies on the axis of symmetry. On an ellipse, two of the four vertices lie on the major axis and two lie on the minor axis. References unreferenced date November ... more details
dablink For other notions of torsion, see Torsion disambiguation Torsion . In the elementary differential geometry of curves in three dimensions , the torsion of a curve measures how sharply it is twisting. Taken together, the curvature and the torsion of a space curve are analogous to the curvature of a plane curve. For example, they are coefficients in the system of differential equation s for the Frenet frame given by the Frenet Serret formulas . Definition file Torus Knoten uebereinander Animated.gif thumb upright Animation of the torsion and the corresponding rotation of the binormal vector Let C be a space curve parametrized by arc length math s math and with the unit tangent vector t . If the curvature math kappa math of C at a certain point is not zero then the principal normal vector and the binormal vector at that point are the unit vectors math mathbf n frac mathbf t kappa , quad mathbf b mathbf t times mathbf n , math where the prime denotes the derivative of the vector with respect to the parameter math s math . The torsion math tau math measures the speed of rotation of the binormal vector at the given point. It is found from the equation math mathbf b tau mathbf n . math which means math tau mathbf n cdot mathbf b . math Remark The derivative of the binormal vector is perpendicular to both the binormal and the tangent, hence it has to be proportional to the principal ... visible at the peaks of the torsion function. Properties A plane curve with non vanishing curvature has zero torsion at all points. Conversely, if the torsion of a regular curve with non vanishing curvature is identically zero, then this curve belongs to a fixed plane. The curvature and the torsion of a helix are constant. Conversely, any space curve with constant non zero curvature and constant ... handed one. Alternative description Let r r t be the parametric equation of a space curve. Assume that this is a regular parametrization and that the curvature of the curve does not vanish. Analytically ... more details
Power curve may refer to The power band of an internal combustion engine, the range of speeds in which it operates efficiently The Drag physics Drag in aerodynamics power curve in aerodynamics, a characteristic curve of drag vs. airspeed for airfoils disambig ... more details
In geometry an imaginary curve is an algebraic curve which contains a finite number of imaginary point s. See also Imaginary point Real point Imaginary line mathematics Real line Real curve geometry stub Category Projective geometry ... more details
In geometry a real curve is an algebraic curve that contains an infinite number of real point s. See also Imaginary point Real point Imaginary line Real line Imaginary curve Category Projective geometry Elementary geometry stub ... more details
A Moore curve after E. H. Moore is a Geometric continuity continuous fractal space filling curve space filling curve which is a variant of the Hilbert curve . Precisely, it is the curve definitions loop version of the Hilbert curve, and it may be thought as the union of four copies of the Hilbert curves combined in such a way to make the endpoints coincide. Because the Moore curve is plane filling, its Hausdorff dimension is 2. The following figure shows the initial stages of the Moore curve. Image Moore curve stages 0 through 5.png Representation as Lindenmayer system The Moore curve can be expressed by a rewriting rewrite system L system . Alphabet L, R Constants F, , &minus Axiom LFL F LFL Production rules L &rarr &minus RF LFL FR&minus R &rarr LF&minus RFR&minus FL Here, F means draw forward , means turn left 90 , and &minus means turn right 90 see turtle graphics . Like the Hilbert curve, the Moore curve can be extended to three dimensions Image Moore3d step3.png 200 px External links A. Bogomolny, Plane Filling Curves from Interactive Mathematics Miscellany and Puzzles http www.cut the knot.org do you know hilbert.shtml, Accessed 07 May 2008. See also Hilbert curve Sierpi ski curve z order curve List of fractals by Hausdorff dimension Category Fractal curves ... more details
Lorentz curve may refer to the Cauchy Lorentz distribution , a probability distribution the Lorenz curve , a graphical representation of a different probability distribution disambig ... more details
File Railroad S Curve.jpg thumb left Railroad reverse S curve. File MUTCD W1 4.svg right 100px In civil engineering , a reverse curve or S curve is a section of the horizontal alignment of a highway or railroad route in which a curve to the left or right is followed immediately by a curve in the opposite direction. On highways in the United States of America United States reverse curves are often announced by the posting of a W1 4L sign left right reverse curve or a W1 4R sign right left reverse curve , as called for in the Manual on Uniform Traffic Control Devices . In banking , the term reverse curve refers to a situation in which short term lending rates are higher than long term rates. Category Rail transport Category Transport engineering rail stub engineering stub sv S kurva ... more details
Orphan date April 2010 Transfer Curve or Voltage Transfer Curve In Digital Electronics output voltage versus input voltage graph may be plotted, such a graph is called transfer curve. A Sample Transfer Curve gallery Image Inverter voltage transfer curve.png Sample Curve gallery In any Oscilloscope , If you connect Channel 1 with Input Voltage & Connect Channel 2 with Output voltage, You can see the transfer curve in Dual Mode. You should have buttons Dual Mode and X Y Mode pressed to see the transfer curve of a circuit. See also Inverter logic gate Category Digital electronics ... more details
Characteristic curve may refer to In electronics , a representation of certain electrical characteristics of a device or component Semiconductor curve tracer , a device for displaying the above curve In photography, a plot of film density see sensitometry In mathematics, used in the method of characteristics for solving partial differential equations disambig ... more details
Image Devils curve a 0.8 b 1.svg right thumb Devil s curve for nowrap a 0.8 and nowrap b 1 . Image Devils curve a 0.0 1.0 b 1.svg right thumb Devil s curve with math a math ranging from 0 to 1 and nowrap b 1 with the curve color going from blue to red . In geometry , a Devil s curve is a curve defined in the Cartesian plane by an equation of the form math y 2 y 2 a 2 x 2 x 2 b 2 . math Devil s curves were studied heavily by Gabriel Cramer . The name comes from the shape it takes when graphed. It seems that the devil in the name of the curve is from a juggling game called diabolo , which involves two sticks, a string, and a spinning prop in the likeness of the form of this curve. The confusion is the result of the Italian word diabolo meaning devil . ref http www.2dcurves.com quartic quarticd.html ref References reflist External links http mathworld.wolfram.com DevilsCurve.html MathWorld Devil s Curve http www history.mcs.st andrews.ac.uk Curves Devils.html The MacTutor History of Mathematics University of St. Andrews Devil s curve DEFAULTSORT Devil S Curve Category Curves geometry stub ca Corba del diable es Curva del diablo fr Courbe du diable nl Duivelscurve sl Hudi eva krivulja ... more details
disambig Dissociation curve may refer to Ligand biochemistry Receptor ligand binding affinity represented in a graph Oxygen haemoglobin dissociation curve , a graphical representation of oxygen release from haemoglobin Melting curve analysis , a biochemical technique relying on heat dependent dissociation between two DNA strands ... more details
Refimprove date July 2010 The Rahn curve is an economic theory , developed by Richard Rahn , which proposes that there is a level of government spending which maximises economic growth . The theory is used by classical liberals to argue for a decrease in overall government spending and taxation . The curve suggests the optimal level of government spending is 15 25 of GDP . See also Government spending Laffer curve Tax cut External links http www.economicshelp.org blog economics the rahn curve economic growth and level of spending http freedomandprosperity.org 2010 videos the rahn curve and the growth maximizing level of government The Rahn Curve and the Growth Maximizing Level of Government econ theory stub Category Economic theories Category Economics curves Category Fiscal policy ... more details
Infobox album See Wikipedia WikiProject Albums Name The Way of Curve Type Compilation Artist Curve band Curve Cover The Way of Curve.jpg Released May 17, 2004 Recorded 1991 2004 Genre Alternative rock Length 2 24 09 Label Anxious Records br BMG Producer Curve with various others Reviews Allmusic Rating 4 5 Allmusic class album id r690116 pure url yes link br Pitchfork Media 7.1 10.0 http www.pitchforkmedia.com article record review 16412 the way of curve?artist title 16412 the way of curve link Last album The New Adventures of Curve br 2002 This album The Way of Curve br 2004 Next album The Way of Curve is a compilation album by Curve band Curve . The album consists of two discs the first is basically a greatest hits disc, containing many of Curve s most famous and successful songs the second contains rare tracks, including one In Disguise that had never been released. All tracks were remastered for the release, though some of the tracks such as Die Like A Dog had errors. Only 10,000 copies of the album were made ref cite web url http www.discogs.com release 704538 title Curve The Way of Curve 1990 2004 publisher Discogs accessdate 2007 08 17 ref and it is now out of print, though it can be partially be downloaded from iTunes . As Curve disbanded shortly after the album s release, The Way of Curve effectively became their career retrospective. Miss Kittin used Falling Free Aphex Twin Mix on her mix album A Bugged Out Mix Miss Kittin album A Bugged Out Mix . ref http www.discogs.com Miss Kittin A Bugged Out Mix By Miss Kittin release 674304 Miss Kittin A Bugged Out Mix By Miss Kittin CD Discogs . Retrieved 2010 07 16. ref Tracklisting Disc One The Way of Curve 1990 2004 Ten Little Girls 4 28 Coast is Clear 3 59 Clipped 3 51 Die Like a Dog 4 39 Horror Head 3 41 Fa t Accompli ... External links http www.curve.co.uk CurveCurve DEFAULTSORT Way Of Curve, The Category 2004 compilation albums Category Curve albums Category Double compilation albums ... more details
other uses Bell curvedisambiguation Infobox book name The Bell Curve image Image TheBellCurve.gif 210px ... 914673 9 dewey 305.9 082 20 congress BF431 .H398 1994 oclc 30913157 The Bell Curve is a best selling ... texts were written in response to the book. Content The Bell Curve, published in 1994, was written ... Curve argues that Intelligence exists and is accurately measurable across racial, language ... the media response. The Bell Curve received a great deal of media attention. He wrote While many ... Let The Bell Curve s Pseudo Science Define the Agenda on Race By Jim Naureckas January February 1995 ... Journal , December 13, 1994 . ref endorsing the views presented in The Bell Curve . The statement ... The Bell Curve , the American Psychological Association s Board of Scientific Affairs established ... force s findings supported or were consistent with statements from The Bell Curve . They agreed ... intelligence, g One part of the criticism of The Bell Curve focused on the validity of IQ and g . William J. Matthews and Stephen Jay Gould 1994 listed four basic assumptions of The Bell Curve . According ..., 1994 . ref http goinside.com 1998 03 23 a review of the bell curve bad science makes for bad conclusions A Review of the Bell Curve Bad Science Makes for Bad Conclusions ref Intelligence must be reducible ..., anthropologist C. Loring Brace in a review wrote that The Bell Curve made six basic assumptions .... Heckman writes that a reanalysis of the evidence used in The Bell Curve contradicts this story ... 1995 title Lessons from the Bell Curve journal Journal of Political Economy volume 103 issue 5 pages ... status, using the same variables as The Bell Curve, but weighting them differently. They found ... Cracking the Bell Curve Myth Hout et al. , Herrnstein and Murray s finding, that IQ predicts poverty .... ref http press.princeton.edu titles 5877.html Inequality by Design Cracking the Bell Curve ..., Sanders and Winship, Christopher, A Reanalysis of The Bell Curve August 1995 . NBER Working Paper ... more details
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