• Matlab TutorialsNo Comments

    default thumbnail

    actually has a built-in that creates of almost any .
    Not surprisingly, this function is named magic.

    B = magic(4)
    B = 
        16     2     3    13
         5    11    10     8
         9     7     6    12
         4    14    15     1

    This is almost the same as the one in the Dürer engraving and has all the same “magic” ; the only difference is that the two middle columns are exchanged.
    To make this B into Dürer’s A, swap the two middle columns.

    A = B(:,[1 3 2 4])

    This says “ each of the rows of matrix B, reorder the elements in the 1, 3, 2, 4.”
    It produces

    A = 
        16     3     2    13
         5    10    11     8
         9     6     7    12
         4    15    14     1

    Why would Dürer go to the trouble of rearranging the columns when he could have used MATLAB’s ordering? No doubt he wanted to include the date of the engraving, 1514, at the bottom of his magic square.

    You might also be interested in :  open

    Comment closed!