只能說高斯無處不在

  X = [ 1,0,3,0,0,0,0,0,1,0,0; % 7111 1,1,0,0,0,0,0,0,0,2,1; % 8809 1,0,1,2,0,0,0,0,1,0,0; % 2172 1,0,0,0,0,0,0,4,0,0,0; % 6666 1,0,4,0,0,0,0,0,0,0,0; % 1111 1,0,0,4,0,0,0,0,0,0,0; % 2222 1,0,0,1,0,0,

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