calc lab 2 - 0 1 5 -6 15 3 -8 1 0 53...

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LAB 2-Brad Finley >> B=[2 -1 4 -5 27; -1 3 -2 -1 -26; 0 1 5 -6 15; 3 -8 1 0 53] B = 2 -1 4 -5 27 -1 3 -2 -1 -26 0 1 5 -6 15 3 -8 1 0 53 >> B(2,:)=B(2,:)+B(1,:) B = 2 -1 4 -5 27 1 2 2 -6 1 0 1 5 -6 15 3 -8 1 0 53 >> B(2,:)=B(2,:)-(1/2)*B(1,:) B = 2 -1 4 -5 27 0 5/2 0 -7/2 -25/2 0 1 5 -6 15 3 -8 1 0 53 >> B(1,:)=2*B(1,:)-B(4,:) B = 1 6 7 -10 1 0 5/2 0 -7/2 -25/2
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Unformatted text preview: 0 1 5 -6 15 3 -8 1 0 53 >> B(4,:)=B(4,:)-3*B(1,:) B = 1 6 7 -10 1 0 5/2 0 -7/2 -25/2 0 1 5 -6 15 0 -26 -20 30 50 >> B(4,:)=B(4,:)+26*B(3,:) B = 1 6 7 -10 1 0 5/2 0 -7/2 -25/2 0 1 5 -6 15 0 0 110 -126 440 >> B(3,:)=5*B(3,:)-2*B(2,:) B = 1 6 7 -10 1 0 5/2 0 -7/2 -25/2 0 0 25 -23 100 0 0 110 -126 440 >> B(4,:)=B(4,:)-4.4*B(3,:) B = 1 6 7 -10 1 0 5/2 0 -7/2 -25/2 0 0 25 -23 100 0 0 * -124/5 * >> A=[-2 1 9 1; 3 3 -4 2; 1 4 5 5] A =-2 1 9 1 3 3 -4 2 1 4 5 5 >> A(3,:)=2*A(3,:)+A(1,:) A =-2 1 9 1 3 3 -4 2 0 9 19 11 >> A(1,:)=A(1,:)+A(2,:) A = 1 4 5 3 3 3 -4 2 0 9 19 11 >> A(2,:)=A(2,:)-3*A(1,:) A = 1 4 5 3 0 -9 -19 -7 0 9 19 11 >> A(3,:)=A(3,:)+A(2,:) A = 1 4 5 3 0 -9 -19 -7 0 0 0 4 >> a=[2 3 -4 1 2; 3 -1 -1 2 4; 1 -7 5 -1 6;0 0 0 0 0] a = 2 3 -4 1 2 3 -1 -1 2 4 1 -7 5 -1 6 0 0 0 0 0 >> a(1,:)=a(1,:)-a(3,:) a = 1 10 -9 2 -4 3 -1 -1 2 4 1 -7 5 -1 6 0 0 0 0 0 >> a(2,:)=a(2,:)-3*a(3,:) a = 1 10 -9 2 -4 0 20 -16 5 -14 1 -7 5 -1 6 0 0 0 0 0 >> a(3,:)=a(3,:)-a(1,:) a = 1 10 -9 2 -4 0 20 -16 5 -14 0 -17 14 -3 10 0 0 0 0 0 >> a(3,:)=20*a(3,:)+17*a(2,:) a = 1 10 -9 2 -4 0 20 -16 5 -14 0 0 8 25 -38 0 0 0 0 0 >> b=[2 3 -4 4; 8 11 -7 8;2 2 -4 -3] b = 2 3 -4 4 8 11 -7 8 2 2 -4 -3 >> b(2,:)=b(2,:)-4*b(1,:) b = 2 3 -4 4 0 -1 9 -8 2 2 -4 -3 >> b(1,:)=1.5*b(1,:)-b(3,:) b = 1 5/2 -2 9 0 -1 9 -8 2 2 -4 -3 b = 1 5/2 -2 9 0 -1 9 -8 2 2 -4 -3 >> b(3,:)=b(3,:)-2*b(1,:) b = 1 5/2 -2 9 0 -1 9 -8 0 -3 0 -21 >> b(3,:)=b(3,:)-3*b(2,:) b = 1 5/2 -2 9 0 -1 9 -8 0 0 -27 3 >> c=[.2 sqrt(5) -2 1.5; -sqrt(3) pi -2.6 14.3; sin(2) -7/2 1 sqrt(2)] c = 1/5 2889/1292 -2 3/2-1351/780 355/113 -13/5 143/10 401/441 -7/2 1 1393/985 . . . . c = 1 2889 -2 3 0 1 -7/10000 11/10000 0 0 1 -9774/19...
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calc lab 2 - 0 1 5 -6 15 3 -8 1 0 53...

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