14 June 2006 19:30
流形
流形(Manifold),一般可以認為是局部具有歐氏空間性質的空間。 而實際上歐氏空間就是流形最簡單的實例。像地球表面這樣的球面是一個稍為複雜的例子。一般的流形可以通過把許多平直的片
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