10 dim a(10,11)
20 m=3
30 n=m+1
40 for i=1 to m
50 for j=1 to n
60 read d
70 a(i,j)=d
80 next j
90 next i
100 for k=1 to m
110 p=a(k,k)
120 for j=k to n
130 a(k,j)=a(k,j)/p

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