13 lines
188 B
Matlab
13 lines
188 B
Matlab
a=[2,3,6,7;4,2,8,6;3,6,9,2;4,7,9,3]
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a1=a([1:3],[2:3])
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a2=a(2,3)
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zeros(3,4)
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ones(5)
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eye(3)
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rand(4)
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randn(3)
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% 删除行列
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a(:,[3])=[]
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% 增加元素和列
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a(5,6)=45
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a(:,4)=[90,89,34,56,98] |