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MATLAB 一道运算题求解
1.设a= [1,-2,3; 4,5,9; 6,3,-8], b= [2,6,1; -3,2,7; 4,8,-1]。(1)求a.*b (2)求a.^2 (3)求 2-a (4)求a(1:2,2:3) (5)求median(a) (6)求min(a(:)) (7)求a(:)’
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丨Lv 4
>> a= [1,-2,3; 4,5,9; 6,3,-8], b= [2,6,1; -3,2,7; 4,8,-1]a = 1 -2 3 4 5 9 6 3 -8b = 2 6 1 -3 2 7 4 8 -1>> a.*bans = 2 -12 3 -12 10 63 24 24 8>> a.^2ans = 1 4 9 16 25 81 36 9 64>> 2-aans = 1 4 -1 -2 -3 -7 -4 -1 10>> a(1:2,2:3)ans = -2 3 5 9>> median(a)ans = 4 3 3>> min(a(:))ans = -8>> a(:)'ans = 1 4 6 -2 5 3 3 9 -8
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