英和和英

出典:『Wikipedia』 (2010/09/26 14:37 UTC 版)

英語による解説

引用

An n-pointed magic star is a star polygon with Schläfli symbol {n/2} in which numbers are placed at each of the n vertices and n intersections, such that the four numbers on each line sum to the same magic constant. A normal magic star contains the consecutive integers 1 to 2n. The magic constant of an n-pointed normal magic star is M = 4n + 2.