Classification par l’équation cartésienne explicite en y (courbes algébriques): . LISSAJOUS (COURBE OU FIGURE DE/) · LISSE (COURBE/) · LITUUS. équerre f LISP abbr (list processing language) COMP langage de traitement de listes m Lissajous: – figures npl PHYS courbes de Lissajous f pl list’ n COMP.

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courbes en relief

The beam in some versions traces out a lopsided figure-8 pattern on its side. From Wikipedia, the free encyclopedia. Width Height Views Read Edit View history.

In the professional audio world, this method is used for realtime analysis of the phase relationship between the left and right channels of a stereo audio signal. On larger, more sophisticated audio mixing consoles an oscilloscope may be built-in for this purpose.

This licensing tag was added to this file as part of the GFDL licensing update. This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. Rational ratios produce closed connected or “still” figures, while irrational ratios produce figures that appear to rotate.

Lissajous curve – Wikipedia

I, the copyright holder of this work, hereby publish it under the following licenses:. Description Lissajous curve 1by2. By using this site, you agree to the Terms of Use and Privacy Policy. The relation of some Lissajous curves to Chebyshev polynomials is clearer to understand if the Lissajous curve which courb each of them is expressed using cosine functions rather than sine functions.

Index of /courbes2d/lissajous

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This family pissajous curves was investigated by Nathaniel Bowditch inand later in more detail by Jules Antoine Lissajous in Not to be confused with spirographswhich are generally enclosed by a circular boundary, whereas Lissajous curves are enclosed by rectangular boundaries. Wikimedia Commons has media related to Lissajous curves. Lissajous figures were sometimes displayed on oscilloscopes meant to simulate high-tech equipment in science-fiction TV shows and movies in the s and courbr.

Lissajous figures are sometimes used in graphic design as logos. The following other wikis use this file: This article needs additional citations dr verification. Please help to improve this article by introducing more precise citations. I created it with the following GNUplo. Lissajous curves can also be generated using an oscilloscope as illustrated.

The arrows show the direction of rotation of the Lissajous figure. You may select the license of your choice. Articles needing additional references from November All articles needing additional references All articles with unsourced statements Articles courve unsourced statements from September Articles lacking in-text citations from November All articles lacking in-text citations Commons category link is on Wikidata Wikipedia articles with NDL identifiers Articles containing video clips.

Unsourced material may be challenged and removed. Prior to modern electronic equipment, Lissajous curves could be generated mechanically by means of a harmonograph. A Lissajous curve is used in experimental tests to determine if a device may be properly categorized as a memristor.

This page was last edited on 4 Marchat From Wikimedia Commons, the free media repository. This article includes a list of referencesbut its sources remain unclear because it has insufficient inline citations.

You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. November Learn couebe and when to remove this template message. The following 2 pages uses this file: Retrieved 17 September In other projects Wikimedia Commons.


File:Lissajous curve 1by2.svg

An octopus circuit can be used to demonstrate the waveform images on an oscilloscope. When the input to an LTI system is sinusoidal, the output is sinusoidal with the same frequency, but it may have a different amplitude and some phase shift.

Summary [ edit ] Description Lissajous curve 1by2. A Lissajous curve, that can be expressed in parametric form as: I created it with the following GNUplot code: The coubre form of these curves is often suggestive of a three-dimensional knotand indeed many kinds of knots, including those known as Lissajous knotsproject to the plane as Lissajous figures.

I created it with the following GNUplot code:.

Please help improve this article by adding citations to reliable sources. This W3C- unspecified plot was created with Gnu plot. This page was last edited on 24 Lisssajousat The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Gnuplot diagrams Lissajous curves. The figure below summarizes how the Lissajous figure changes over different phase shifts. If the file has been modified from its original state, some lissajlus such as the timestamp may not fully reflect those of the original file. Retrieved from ” https: In a sequence towards the end of an episode of Columbo entitled “Make me a Perfect Murder”, the detective sits watching Lissajous curves displayed to music on monitors in a TV outside broadcast van.

Two phase-shifted sinusoid inputs are applied to the oscilloscope in X-Y mode and the phase relationship between the signals is presented as a Lissajous figure.

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