B
Ingenieurmathematik Prüfung 2
20.August2003
Zeit 90 Minuten, Reihenfolge beliebig, 8 Punkte pro Hauptaufgabe,
40 Pt. = N.6.
A = [0 0 14]'; B=[6 0 6]'; C=[0 6 6]' n = cross(B-A,C-A), ne = n/norm(n), d = ne'*A %n =[ 48 48 36]; ne = [0.6247 0.6247 0.4685]'; d= 6.5593 xs = d/ne(1) ; Sx = [ xs 0 0]', ne'*Sx-d % xs = 10.5 ys = d/ne(2) ; Sy = [ 0 ys 0]', ne'*Sy-d % ys = 10.5
Rur = [0 3 3 0 0; 0 0 6 6 0; 1 1 1 1 1]; T1 = [1 0 -4.5; 0 1 -4.5; 0 0 1]; RTb = [0 1 4.5; -1 0 4.5; 0 0 1]; TT = RTb*T1 % TT= [0 1 0; -1 0 12; 0 0 1] R1 = TT*Rur, R2 = TT^2*Rur, R3=TT^3*Rur, hold on plot(Rur(1,:),Rur(2,:),'k'); plot(R1(1,:),R1(2,:),'r'); plot(R2(1,:),R2(2,:),'g'); plot(R3(1,:),R3(2,:),'b'); axis([-1 11 -1 11]); axis square; hold off