Converting a Double into a Matrix of its Digits

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How can I convert the 3-by-1 matrix A into the 3-by-3 matrix B in the simplest way?
A = [ 123; 456; 789 ];
B = [ 1 2 3; 4 5 6; 7 8 9 ];

Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 12 Aug 2016
Edited: Azzi Abdelmalek on 12 Aug 2016
A = [ 123; 456; 789 ]
B=num2str(A)-'0'

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