|
In mathematics, a Jerusalem Cube is a fractal object created by recursively drilling Greek cross-shaped holes into a cube. The name comes from a face of the cube resembling a Jerusalem cross pattern. ==Construction== The construction of the Jerusalem Cube can be described as follows: # Start with a cube. # Cut a cross through each side of the cube, leaving eight cubes (of rank +1) at the corners of the original cube, as well as twelve smaller cubes (of rank +2) centered on the edges of the original cube between cubes of rank +1. # Repeat the process on the cubes of rank 1 and 2. Each iteration adds eight cubes of rank one and twelve cubes of rank two, a twenty-fold increase. (Similar to the Menger sponge but with two different-sized cubes.) Iterating an infinite number of times results in the Jerusalem Cube. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Jerusalem Cube」の詳細全文を読む スポンサード リンク
|