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A Diagonal Magic Cube is an improvement over the ''simple'' magic cube. It is the second of six magic cube classes when ranked by the number of lines summing correctly. In a diagonal magic cube of order ''m'', all 6''m'' of the diagonals in the m planes parallel to the top, front, and sides of the cube must sum correctly. This means that the cube contains 3''m'' simple magic squares of order ''m''. Because the cube contains so many magic squares, it was considered for many years to be perfect (although other types of cubes were also sometimes called a perfect magic cube. It is now known that there are three higher classes of cubes. The (proper) diagonal magic cube has a total of 3m2 + 6''m'' + 4 correctly summing lines and 3''m'' + 6 simple magic squares. The new definition perfect magic cube has a total of 13''m''2 correct lines and 9''m'' pandiagonal magic squares. NOTE: Traditionally, ''n'' has been used to indicate the order of the magic hypercube. However, in recent years, due to the increasing emphasis on higher dimension hypercubes, there is a trend to use ''m'' to indicate order and ''n'' to indicate dimension. ==See also== *Magic cube classes 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「Diagonal magic cube」の詳細全文を読む スポンサード リンク
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