Fractale

Définition Larousse

fractal, e, als adjectif (latin fractus, brisé) Se dit d'objets mathématiques dont la création ou la forme ne trouve ses règles que dans l'irrégularité ou la fragmentation, et des branches des mathématiques qui étudient de tels objets. Objet fractal. Géométrie fractale. La nature offre de nombreux exemples de formes présentant un caractère fractal : flocons de neige, ramifications des bronches et bronchioles, des réseaux hydrographiques, etc.

Définition Encarta

Fractales, figures géométriques de structure complexe dont la création ou la forme met en jeu des règles utilisant le fractionnement. Les fractales sont à la base d’un nouveau système de géométrie permettant de représenter des objets très irréguliers tels que les reliefs montagneux, les amas galactiques ou les côtes rocheuses très découpées.

Définition Wikipédia

On nomme figure fractale ou "fractale" par substantivation de l'adjectif (ou encore en anglais fractal), une courbe ou surface de forme irrégulière ou morcelée qui se crée en suivant des règles déterministes ou stochastiques impliquant une homothétie interne. Le terme « fractale » est un néologisme créé par Benoît Mandelbrot en 1974 à partir de la racine latine fractus, qui signifie brisé, irrégulier. Dans la « théorie de la rugosité » développée par Mandelbrot, une fractale désigne des objets dont la structure est liée à l'échelle.

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What is a Content Management System?

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Logging in

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Creating an article

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Site and Administrator

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