Create a variable m as a magic square with the size 6 x 6
Magic squares are defined as square matrices, where the sum of all rows and columns are equal.
(Hint: see help magic)
Replace all the numbers above or equal to 20 with zero.
Clean the List of Names
Number of Circles in a Number
Change the sign of even index entries of the reversed vector
02 - Vector Variables 2
03 - Matrix Variables 6
02 - Vector Variables 4
02 - Vector Variables 3
03 - Matrix Variables 5
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