G
Ingenieurmathematik Prüfung 2
20.August2003
Zeit 90 Minuten, Reihenfolge beliebig, 8 Punkte pro Hauptaufgabe,
40 Pt. = N.6.
A = [0 4 4]'; B=[0 7 0]'; C=[4 4 0]' n = cross(A-B,C-B), ne = n/norm(n), d = ne'*A %n =[ 12 16 12]; ne = [ 0.5145 0.6860 0.5145]'; d= 4.8020 xs = d/ne(1) ; Sx = [ xs 0 0]'; ne'*Sx-d % ys = 9.333 zs = d/ne(3) ; Sz = [ 0 0 zs]' ; ne'*Sz-d % zs = 9.333
Rur = [0 8 8 0 0; 0 0 4 4 0; 1 1 1 1 1]; T1 = [1 0 -6; 0 1 -6; 0 0 1]; RTb = [0 1 6; -1 0 6; 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 13 -1 13]); axis square; hold off