英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

fractal    音标拼音: [fr'æktəl]
分数维几何,分形

分数维几何,分形

fractal
n 1: (mathematics) a geometric pattern that is repeated at every
scale and so cannot be represented by classical geometry

A fractal is a rough or fragmented
geometric shape that can be subdivided in parts, each of which
is (at least approximately) a smaller copy of the whole.
Fractals are generally self-similar (bits look like the whole)
and independent of scale (they look similar, no matter how
close you zoom in).

Many mathematical structures are fractals; e.g. {Sierpinski
triangle}, {Koch snowflake}, {Peano curve}, {Mandelbrot set}
and {Lorenz attractor}. Fractals also describe many
real-world objects that do not have simple geometric shapes,
such as clouds, mountains, turbulence, and coastlines.

{Benoit Mandelbrot}, the discoverer of the {Mandelbrot set},
coined the term "fractal" in 1975 from the Latin fractus or
"to break". He defines a fractal as a set for which the
{Hausdorff Besicovich dimension} strictly exceeds the
{topological dimension}. However, he is not satisfied with
this definition as it excludes sets one would consider
fractals.

{sci.fractals FAQ
(ftp://src.doc.ic.ac.uk/usenet/usenet-by-group/sci.fractals/)}.

See also {fractal compression}, {fractal dimension}, {Iterated
Function System}.

{Usenet} newsgroups: {news:sci.fractals},
{news:alt.binaries.pictures.fractals}, {news:comp.graphics}.

["The Fractal Geometry of Nature", Benoit Mandelbrot].

[Are there non-self-similar fractals?]

(1997-07-02)


请选择你想看的字典辞典：
单词字典翻译
fractal查看　fractal　在百度字典中的解释百度英翻中〔查看〕
fractal查看　fractal　在Google字典中的解释Google英翻中〔查看〕
fractal查看　fractal　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Affect vs. Effect: How to Pick the Right One | Merriam-Webster
    Affect and effect are two of the most commonly confused words in English, but don’t worry—we’ll help you keep them straight The basic difference is this: affect is usually a verb, and effect is usually a noun
  • “Affect” vs. “Effect”: What’s the Difference? | Grammarly
    “Affect” vs “Effect”: What’s the Difference? Affect is usually used as a verb meaning to influence or produce a change in something, whereas effect is generally used as a noun that refers to a change resulting from something
  • Affect vs. Effect – What’s the Difference?
    In this article, you’ll learn the difference between affect vs effect, with grammar explanations, everyday examples, and simple tips to help you remember which one to use
  • Affect vs. Effect: Use The Correct Word Every Time
    Affect is most often a verb meaning “to influence or produce change,” while effect is primarily a noun referring to a result or consequence Delve into other uses, like effect as a verb to bring about change and affect as a noun for an emotional state
  • Affect vs. Effect Difference Explained Clearly
    What Is the Difference Between Affect and Effect? The simplest explanation: Affect is usually a verb meaning to influence something Effect is usually a noun meaning a result or outcome Affect means to influence, change, or impact something or someone “Lack of sleep can affect your productivity ” “Social media trends affect consumer behavior ”
  • Grammar 101 | Affect vs Effect: Learn the difference | IELTS Australia
    When do you use effect or affect (or in past tense, affected or effected)? Affect v effect easily get confused Affect is usually a verb, and it means to impact or change Effect, on the other hand, is usually a noun that you would use to indicate the result of a change
  • Affect vs Effect: Master the Difference with Simple Tips and Examples
    Struggling with "affect vs effect"? Learn the key differences with examples, grammar rules, and memory tricks to use them correctly
  • Affect or effect ? - Grammar - Cambridge Dictionary
    Affect is a verb meaning ‘influence or cause someone or something to change’: The cold weather has really affected her health New technologies continue to affect how we live Effect is a noun that means ‘the result of an influence’: The pollution in the city had a bad effect on me
  • Affect or Effect? - Grammar Monster
    Do you confuse affect and effect? Affect means to change It is a verb Effect means result It is a noun In other words, you affect (change) something to create an effect (result) Effect is usually preceded by 'the' or 'an '
  • How to Use Effect vs Affect — The Difference - BeLikeNative
    Affect is usually a verb meaning to influence or have an impact on something — the weather affects your mood Effect is usually a noun meaning the result or outcome of a change — the effect of the medication was immediate The key difference: affect is the action (the influencing), and effect is the result (what happened because of it) This is the single most commonly confused word pair





中文字典-英文字典  2005-2009