魔方陣
[ ╲ − − ╱ − ╲ ╱ − − ╱ ╲ − ╱ − − ╲ ] {\displaystyle {\begin{bmatrix}\diagdown &-&-&\diagup \\-&\diagdown &\diagup &-\\-&\diagup &\diagdown &-\\\diagup &-&-&\diagdown \\\end{bmatrix}}} [ 1 − − 4 − 6 7 − − 10 11 − 13 − − 16 ] {\displaystyle {\begin{bmatrix}1&-&-&4\\-&6&7&-\\-&10&11&-\\13&-&-&16\\\end{bmatrix}}} [ ╲ 15 14 ╱ 12 ╲ ╱ 9 8 ╱ ╲ 5 ╱ 3 2 ╲ ] {\displaystyle {\begin{bmatrix}\diagdown &15&14&\diagup \\12&\diagdown &\diagup &9\\8&\diagup &\diagdown &5\\\diagup &3&2&\diagdown \\\end{bmatrix}}} [ 1 15 14 4 12 6 7 9 8 10 11 5 13 3 2 16 ] {\displaystyle {\begin{bmatrix}1&15&14&4\\12&6&7&9\\8&10&11&5\\13&3&2&16\\\end{bmatrix}}}