26 lines
230 B
Matlab
26 lines
230 B
Matlab
% 练习2第1-4题
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% 1
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A=[6,9,3;2,7,5];
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B=[2,4,1;4,6,8];
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A+B
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A*B
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A*B'
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% 2
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clear
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A=[3,2,0,1,5];
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roots(A)
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% 3
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clear
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A = [4,9,2;7,6,4;3,5,7];
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B = [37;26;28];
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A\B
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% 4
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syms x
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f = 3*x^4-12*x^3-5*x+9;
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int (f,x)
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diff(f,x)
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int(f,x,0,2)
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