How do I form a matrix from an array of rows and columns

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Olayinka
Olayinka 2023-11-19
编辑： madhan ravi 2023-11-19
A=ones(10)
a=[1 3 5 6 9]
b=[1 2 4 7 9]
A(a,b)=0 should provide A(1,1)=0 A(3,2)=0 A(5,4)=0 A(6,7)=0 A(9,9)=0

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采纳的回答

Chunru
Chunru 2023-11-19
Ran in:
A=ones(10);
a=[1 3 5 6 9];
b=[1 2 4 7 9];
A(sub2ind(size(A), a,b)) = 0;
A
A = 10×10
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1

更多回答（1 个）

madhan ravi
madhan ravi 2023-11-19
A(a + (b-1)*size(A,1)) = 0
  1 个评论
madhan ravi
madhan ravi 2023-11-19
编辑：madhan ravi 2023-11-19
Ran in:
A=ones(10);
a=[1 3 5 6 9];
b=[1 2 4 7 9];
A(a + (b-1)*size(A,1)) = 0
A = 10×10
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1

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