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.
Back to basics 12 - Input Arguments
Determine Whether an array is empty
05 - Vector Equations 3
Summation of array
06 - Matrix Equations 1
03 - Matrix Variables 6
03 - Matrix Variables 3
07 - Common functions and indexing 2
04 - Scalar Equations 3
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