the last commit for lab6 exercises and a2 exercises
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4
lab6/exercise6_1.m
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4
lab6/exercise6_1.m
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A=[0,9,6;1,3,0];
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B=[1,4,3;1,5,0];
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A&B
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A./B
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3
lab6/exercise6_10.m
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3
lab6/exercise6_10.m
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syms x;
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eq1=x^4-4*x^3+12*x-9==0;
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x=solve(eq1,x)
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lab6/exercise6_8.m
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lab6/exercise6_8.m
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for k=1:10
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if k>6
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break
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else
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arry(k)=k;
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end
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end
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disp(arry);
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7
lab6/exercise6_9.m
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lab6/exercise6_9.m
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i=2;
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a=2i;
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b=2*i;
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c=2*sqrt(-1);
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a
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b
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c
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4
lab6/exercise6_c_1.m
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lab6/exercise6_c_1.m
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A=[1,2,3;4:6;7:9];
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C=[A;[10,11,12]];
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D=C(1:3,[2,3]);
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E=C(2,[1,2]);
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9
lab6/exercise6_c_2.m
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lab6/exercise6_c_2.m
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x=[0,1,0,2,0,3,0,4];
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for k=1:8
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if x(k)==0
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x(k)=k;
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else
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x(k)=2*k+1;
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end
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end
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disp(x)
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3
lab6/exercise6_c_3.m
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3
lab6/exercise6_c_3.m
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syms a b c x;
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s=a*x^2+b*x+c;
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solve(s)
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3
lab6/exercise6_c_4.m
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3
lab6/exercise6_c_4.m
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A=[2,3,1,2;1,3,0,1;1,-1,1,8;7,1,-2,2];
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B=[8,6,1,5];
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A\B'
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7
lab6/exercise6_c_5.m
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7
lab6/exercise6_c_5.m
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t=linspace(0,2*pi,50);
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y1=sin(2.*t-0.3);
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y2=3.*cos(t+0.5);
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plot(t,y1,'-.ro');
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hold on
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plot(t,y2,':b*');
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hold off
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8
lab6/exercise6_d.m
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8
lab6/exercise6_d.m
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for i=100:999
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a=fix(i/100); % 取百位
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b=rem(fix(i/10),10); % 取十位
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c=rem(i,10); % 取个位
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if a^3+b^3+c^3==i
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disp(i);
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end
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end
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11
lab6/lab6.m
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11
lab6/lab6.m
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[F,P]=uigetfile('*.pgm;*.jpg;*.jpeg;*.tif;*.tiff;*.bmp;*.png;*.hdf;*.pcx;*.xwd','选择图像');
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imna=strcat(P,F);
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myi=imread(imna);
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figure(1);
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imshow(myi);
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figure(2);
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image(myi);
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bgray=rgb2gray(myi);
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figure(3);
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imshow(bgray);
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imwrite(bgray,'th.bmp','bmp');
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BIN
lab6/th.bmp
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lab6/th.bmp
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lab6/屏幕截图 2025-10-26 085153.png
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lab6/屏幕截图 2025-10-26 085153.png
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