单词 | multifractal |
释义 | multifractaladj.n. Mathematics. A. adj. Relating to or consisting of many fractals; describable in terms of a number of fractals. ΚΠ 1984 Jrnl. Physics A 17 3522 These are some indications that multifractal sets are indeed necessary to describe the properties of structure functions in turbulent flows. 1990 New Scientist 15 Sept. 42/1 The pattern is not itself a fractal set, but a novel combination of a multitude of fractal sets. It is called a multifractal distribution, or multifractal measure. 1996 Nature 25 July 312/2 To achieve agreement..it is necessary to adopt a ‘multifractal’ rather than a simple fractal viewpoint, involving a continuum of coexisting fractal dimensions. B. n. An object, process, or phenomenon that can be described in terms of a number of fractals. ΚΠ 1985 U. Frisch & G. Parisi in Proc. Internat. School Physics Enrico Fermi 88 85 Mandelbrot..and others..have considered models with singularities concentrated on a set ⊂R3 having noninteger (fractal) Hausdorff dimension. We shall here show that the data suggest the existence of a hierarchy of such sets (a ‘multifractal’). 1988 Nature 29 Sept. 409/1 Just as completely random phenomena in nature may generate shapes that are fractal, phenomena with spatial correlations are sometimes multifractals. 1989 I. Stewart Does God play Dice? xi. 229 It [sc. the universe] appears to be a ‘multi fractal’, having detailed but not self-similar structure on many scales. 1999 Sci. Amer. Feb. 53/1 Multifractals describe accurately the relation between the shape of the generator and the patterns of up-and-down swings of prices to be found on charts of real market data. This is a new entry (OED Third Edition, March 2003; most recently modified version published online March 2022). < |
随便看 |
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。