Ngày tải lên :
20/08/2013, 13:55
... plot(double(xv(1)*ones(size(yi))),yi,'r') ;% cach :plot(double(xv(1)),yi,'r') plot(double(xv(2)*ones(size(yi))),yi,'r') ;% cach :plot(double(xv(2)),yi,'r') xi=(yi-1)/2;plot(xi,yi,'r'); plot(xi,double(-1*ones(size(xi))),'r');% ... subplot(2,2,1);plot(w,real(G));legend('Dothi Re(G)');%ve theo w va phan thuc subplot(2,2,2);plot(w,imag(G));legend('Dothi Im(G)');%ve theo w va phan ao subplot(2,2,3);plot(w,abs(G));legend( 'Do thi |G|');%ve theo w va tri tuyet doi ... title('surf') subplot(2,2,3);contour(x,y,z) title('contour') %do thi duong dong muc contour subplot(2,2,4);contour3(x,y,z) title('contour3') %do thi duong dong muc 3chieu Bai % Cau a subplot(2,2,1); [teta,phi]=meshgrid(0:pi/30:pi,...