出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/04/19 23:21 UTC 版)
In mathematics, a self-similar object is exactly or approximately similar to a part of itself (i.e. the whole has the same shape as one or more of the parts). Many objects in the real world, such as coastlines, are statistically self-similar: parts of them show the same statistical properties at many scales. Self-similarity is a typical property of fractals.