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Topic: Curve


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In the News (Thu 25 Apr 19)

  
  Curve - Wikipedia, the free encyclopedia
A space curve is a curve for which X is of three dimensions, usually Euclidean space; a skew curve is a space curve which lies in no plane.
A rectifiable curve is a curve with finite length.
From the nineteenth century there is not a separate curve theory, but rather the appearance of curves as the one-dimensional aspect of projective geometry, and differential geometry; and later topology, when for example the Jordan curve theorem was understood to lie quite deep, as well as being required in complex analysis.
en.wikipedia.org /wiki/Curve   (1231 words)

  
 PlanetMath: curve
The second notion is geometric; in this sense a curve is an arc, a 1-dimensional subset of an ambient space.
The two notions are related: the image of a parameterized curve describes the trajectory of a moving particle.
In algebraic geometry, the term curve is used to describe a 1-dimensional variety relative to the complex numbers or some other ground field.
planetmath.org /encyclopedia/Curve.html   (450 words)

  
 Laffer curve - Wikipedia, the free encyclopedia
The Laffer curve, popularized and promoted by economist Arthur Laffer and often used to justify tax cuts, is intended to show that government can maximize tax revenue by setting a tax rate at the peak of this curve and that raising tax rates further actually decreases revenue.
David Stockman, Reagan's budget director during his first administration and one of the early proponents of supply-side economics, maintained that the Laffer curve was not to be taken literally — at least not in the economic environment of the 1980s United States.
Others respond that, even if the Laffer Curve itself is a static model, a programme of tax cuts nevertheless provides incentives for innovation and investment, which will increase the rate of economic growth, as predicted by endogenous growth theory.
en.wikipedia.org /wiki/Laffer_curve   (1553 words)

  
 Koch Curve
Koch constructed his curve in 1904 as an example of a non-differentiable curve, that is, a continuous curve that does not have a tangent at any of its points.
Moreover, the length of the curve between any two points on the curve is also infinite since there is a copy of the Koch curve between any two points.
Three copies of the Koch curve placed around the three sides of an equilateral triangle, form a simple closed curve that form the boundary of the Koch snowflake.
ecademy.agnesscott.edu /~lriddle/ifs/kcurve/kcurve.htm   (542 words)

  
 Sierpinski curve   (Site not responding. Last check: 2007-10-22)
The Sierpinski curve is a base motif fractal where the base is a square.
The curve is the only plane locally connected one-dimensional continuum S such that the boundary of each complementary domain of S is a simple closed curve and no two of these complementary domain boundaries intersect.
The curve is a two-dimensional generalization of the Cantor set.
www.2dcurves.com /fractal/fractals.html   (241 words)

  
 Bezier curve   (Site not responding. Last check: 2007-10-22)
The curve is always contained within the convex hull of the control points, it never oscillates wildly away from the control points.
The curve always passes through the end points and is tangent to the line between the last two and first two control points.
Closed curves are generated by specifying the first point the same as the last point.
astronomy.swin.edu.au /~pbourke/curves/bezier   (680 words)

  
 Some Observation on the Laffer Curve
Notwithstanding the fact that the curve is often used to explain the Leviathan behavior of a revenue-maximizing bureaucracy, it is not a useful tool for the design of economic policy.
The Laffer curve is often used to explain the behavior of a revenue-maximizing bureaucracy.
Because the Laffer curve is generally connected with standard macroeconomic analysis it remains an unsatisfactory analytical tool because it tends to conceal the fact that the optimal size of government is zero.
www.gmu.edu /jbc/fest/files/Monissen.htm   (3474 words)

  
 Bethany Curve Reviews - Gold
Bethany Curve are to be explored and acquired by those who maintain a passion for ambient noise, as well as those lost dream poppers whose direction was lost when Ride died and Oasis rose to fame.
Bethany Curve are a moody bunch of space-rockers who tread a gossamer line woven through the decades between the sound of King Crimson, Joy Division and Labradford; the results are charming, chiming, hypnotic and emotive - huge swathes of treated guitars cavorting across the landscape like rainclouds heralding a summer storm.
Reminiscent of the liquid bands of the early 90's like Chapterhouse, Slowdive and coincidentally, Curve, Bethany Curve produces a very thought-provoking, dragging, echoey, dark and serious sound that may leave one feeling like his or her existence is the worst thing that could possibly have happened.
www.bethanycurve.com /reviews_gold.htm   (4088 words)

  
 Curve Magazine : The best-selling lesbian magazine. Lesbian personals, too.
In the May issue of Curve, Perabo talks about changing teams midstream, her hot Hollywood crush, and the perils of being typecast in Hollywood.
Curve, the nation’s best-selling lesbian magazine, spotlights all that is fresh, funny, exciting, controversial and cutting-edge in our community.
Curve brings you the latest in lesbian-related celebrity interviews, news, politics, pop culture, style, travel, social issues and entertainment.
www.curvemag.com   (580 words)

  
 Aerodynamics in Sports Equipment, Recreation and Machines - Curveball - Instructor
Their findings: A curve ball does curve, and can be explained by the laws of physics that are becoming familiar to you.
This creates a topspin of the ball as it travels, so that the top of the ball is moving forward against the air and meeting resistance while the lower half is spinning backward and moving in the same direction as the air.
Studies show that a curve ball makes a smooth, circular path from pitcher to batter; but because of the increasing gravitational pull on the ball, and the difference in height between release and arrival, the ball appears from a batter's point of view to "fall off a table."
wings.avkids.com /Book/Sports/instructor/curveball-01.html   (911 words)

  
 Curve Tracers
The V/I Curve Tracer is an indispensable tool for troubleshooting circuits and testing components.
The circuit traces the current versus voltage curve for the component under test on an ordinary oscilloscope.
The peak-to-peak test voltage is adjusted by selecting different taps on a power transformer and the test current is limited by a selected series resistor.
www.techlib.com /electronics/curvetrace.html   (610 words)

  
 Upstream: Upstream: Issues: Bell Curve: Sowell   (Site not responding. Last check: 2007-10-22)
The Bell Curve is an education on the whole subject, including the evidence pro and con on a wide variety of controversial issues.
Long before The Bell Curve was published, the empirical literature showed repeatedly that IQ and other mental tests do not predict a lower subsequent performance for minorities than the performance that in fact emerges.
To those committed to such policies, this may be at least as bad as the authors remaining "agnostic" (as Herrnstein and Murray put it) on the question as to whether fl- white IQ differences are genetic in origin.
www.mugu.com /cgi-bin/Upstream/Issues/bell-curve/sowell.html   (3213 words)

  
 Motive Power Review: A Day at Horseshoe Curve
Horeshoe Curve is undoubtedly one of the most famous railroad locations in the nation, and one of the busiest mainlines in the land.
The coal train continues its upgrade grind as it enters the uphill half of the curve.
The rear-end helpers on the coal train come into view on the curve, long after the headend power passed by.
www.hazegray.org /rail/curve   (532 words)

  
 Railfan's Guide - The Greater Altoona, PA Area
The Horseshoe Curve was constructed entirely by men with picks, shovels, horses, and drags, and was opened to traffic, February 15, 1854.
The signal bridge and Wilkes Curve is visible in the background.
Horseshoe Curve Visitors Center; The former Kittanning Point Station is located at milepost 240.9.
www.trainweb.org /horseshoecurve-nrhs/Altoona_area.htm   (811 words)

  
 Rudy Rucker's KappaTau Space Curve Paper   (Site not responding. Last check: 2007-10-22)
The curve is marked off in units of "arclength", where arclength is the distance measured along the curve, just as if the curve were a piece of rope that you could stretch out next to a ruler.
Conway makes the anthropological conjecture that every time a mathematician discovers a curve that he or she thinks might be the true baseball curve, the curve is a different one.
It turns out the baseball stitch curve is based on something so prosaic as a patented 1860s pen and ink drawing of a plane shape used to cut out the leather for a half of a baseball, a shape arrived at by trial and error.
www.mathcs.sjsu.edu /faculty/rucker/kaptaudoc/ktpaper.htm   (3028 words)

  
 Science of Baseball: Activity: Thrown For a Curve
So curveballs do most of their curving in the last quarter of their trip.
One important difference between a fastball, a curveball, a slider, and a screwball is the direction in which the ball spins.
(Other important factors are the speed of the pitch and rate of spin.) Generally speaking, a ball thrown with a spin will curve in the same direction that the front of the ball (home plate side, when pitched) turns.
www.exploratorium.edu /baseball/curve.html   (726 words)

  
 Upstream: Upstream: Issues: The Bell Curve: The Bell Curve and its Critics   (Site not responding. Last check: 2007-10-22)
The critics of The Bell Curve are putting him on the front page, often outrageously caricaturing his work.(5) The trouble with this strategy is that Rushton is a serious scholar who has assembled serious data.
The topic of African IQ is a tiny piece of The Bell Curve: a three-paragraph section in chapter 13 intended to address a hypothesis Herrnstein and I heard frequently, that the test scores of American fls have been depressed by the experience of slavery.
Perhaps the most important section of The Bell Curve is Part II, "Cognitive Classes and Social Behavior." It describes the relationship of IQ to poverty, school-dropout rates, unemployment, divorce, illegitimacy, welfare, parenting, crime, and citizenship.
www.mugu.com /cgi-bin/Upstream/People/Murray/bc-crit.html   (6938 words)

  
 CTAN: directory: /tex-archive/macros/latex/contrib/curve
CurVe may be distributed and/or modified under the conditions of the LaTeX Project Public License, either version 1.1 of this license or (at your option) any later version.
CurVe consists of the following files: - README (this file) - NEWS - curve.ins - curve.dtx - curve.el - cv.tex - rubric.tex * Description ============= CurVe is a class package that hopefully will make your life easier when you want to write your CV.
It provides you with a set of commands to create rubrics, entries in these rubrics etc. CurVe will then properly format your CV for you (possibly splitting it onto multiple pages, repeating the titles etc), which is usually the most painful part of CV writing.
www.ctan.org /tex-archive/macros/latex/contrib/curve   (406 words)

  
 EvilSponge: Album: Gold by Bethany Curve
Bethany Curve are another one of those bands that are still making melancholy and dreamy New Wave pop.
Not so Bethany Curve -- their layers are dense, and the speed of guitar delay and chorus, the heavy drumming, and their use of minor chords put a slightly darker spin on things.
This is not light music for sunny afternoons frolicking in the woods, but rather it is music for a high speed drive through a rainy post-industrial wasteland.
evilsponge.org /albums/BethanyCurve__Gold.htm   (675 words)

  
 ABC-Dir: Curve
The interpretations proffered in Herrnstein and Murray's book, "The Bell Curve", are not supported by reanalysis of their data.
Focus is a curve fitting software for the Windows operating system that has been developed to facilitate spectroscopic modelling and...
Curve Lake First Nation, home of the Mississauga Ojibway, is located in Ontario.
www.abc-directory.com /view/curve   (272 words)

  
 Curve - VEGAS.com   (Site not responding. Last check: 2007-10-22)
Hipsters have a new place to hang at The Living Room, the ultra-chic expansion of Curve.
Thanks to its location inside the Aladdin's exclusive London Club, Curve boasts what is probably the most elegant decor in a nightclub in Vegas, complete with wood floors and ceiling beams, beautiful dark leather couches and candlelit tables.
There are plenty of places to sit and relax around the club and several different reserved/VIP areas, perfect for watching the crowd.
www.vegas.com /nightclubs/curve   (328 words)

  
 Elliptic curve cryptography FAQ v1.12 22nd December 1997
The crucial property of an elliptic curve is that we can define a rule for "adding" two points which are on the curve, to obtain a 3rd point which is also on the curve.
For good security, the curve and fixed point are chosen so that the order of the fixed point F is a large prime number.
Curves with this order are called anomalous, and are susceptible to a recently discovered attack.
www.cryptoman.com /elliptic.htm   (2917 words)

  
 Witch
The curve had been studied earlier by Fermat and Guido Grandi in 1703.
The curve lies between y = 0 and y = a.
The curve can be considered as the locus of a point P defined as follows.
www-groups.dcs.st-and.ac.uk /~history/Curves/Witch.html   (189 words)

  
 Learning Curve Calculator   (Site not responding. Last check: 2007-10-22)
The concept of the learning curve was introduced to the aircraft industry in 1936 when T. Wright published an article in the February 1936 Journal of the Aeronautical Science.
For the Wright learning curve, the underlying hypothesis is that the direct labor man-hours necessary to complete a unit of production will decrease by a constant percentage each time the production quantity is doubled.
The calculator uses the learning curve to estimate the unit, average, and total effort required to produce a given number of units.
www.jsc.nasa.gov /bu2/learn.html   (505 words)

  
 Elliptic curves   (Site not responding. Last check: 2007-10-22)
On the conjecture of Birch and Swinnerton-Dyer for elliptic curves, by Cristian D. Gonzalez-Aviles.
The average rank of an algebraic family of elliptic curves, J.
Beppo Levi and the arithmetic of elliptic curves, by Norbert Schappacher.
www.fermigier.com /fermigier/elliptic.html.en   (746 words)

  
 KoreaTimes : Korean Economy on Downward Curve: McKinsey   (Site not responding. Last check: 2007-10-22)
Even worse, among the six economies, the competitiveness of the South Korean economy is expected to draw a downward curve, as with Singapore, while that of the other three nations is on the rise.
The curve of the Japanese economy’s competitiveness is flat.
The number one task is to modernize labor-management relationships by maximizing labor market flexibility and providing an adequate safety net for the workforce, he noted.
times.hankooki.com /lpage/biz/200310/kt2003102218232411900.htm   (408 words)

  
 DataFit Curve Fitting and Data Plotting Software by Oakdale Engineering
The philosophy at Oakdale Engineering is that the simplicity of the curve fitting process is just as important as achieving accurate results.
Curve fitting is now easier to perform than ever.
DataFitX version 2.0 is a COM component (in-process DLL) that allows you to perform nonlinear curve fitting or cubic spline interpolation from within your program with only a few simple lines of code.
www.curvefitting.com   (281 words)

  
 Forbes.com: US SWAPS-2-year spread hit again as curve flattens   (Site not responding. Last check: 2007-10-22)
As a result, the swaps curve has flattened noticeably as the short-term rates have shot up faster than long-term rates, taking a toll on the two-year swap spread.
The 10-year spread widened to 41-3/4 basis points but is down from 43 a week ago, while the five-year spread pushed out a basis point to 42 and stood at 40-1/4 a week ago.
Reflecting the flattening of the curve, the difference between two- and 10-year swap rates has shrunk about 25 basis points in the past week to 2.53 percentage points.
www.forbes.com /markets/newswire/2003/10/22/rtr1119379.html   (613 words)

  
 04/23/02 - For Whom the Bell Tolls
Now these formidable talents were jointly taking on the most feared taboo of modern times: the links among intelligence, heredity and some of the puzzling but apparently unstoppable pathologies raging in American society—such as crime, family breakup, the emergence of the underclass.
Like Darwin's Origin of Species—the intellectual event with which it is being seriously compared—The Bell Curve offers a new synthesis of research, some of which has been mounting insistently for years, and a hypothesis of far-reaching explanatory power.
The Bell Curve demonstrates in a particularly closely argued passage that it has been achieved by focusing on the less able, a "dumbing down" that has resulted in sharply poorer performance among the most gifted children.
www.vdare.com /pb/bell_curve.htm   (3269 words)

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