第一章等切面曲线和相似曲线 图18慢跑者在椭圆上跑 >>xmax=max(maκ (y(:;1)) > ymin min (min min(y(:;2)) > ymax max (max (Y), max ( > clf hold on; >>axis [xmin xmax ymin ymax]) >> axis('equal); >> title (The Child and the Toy. ' >> stickhandle=line('Color','yellow,'EraseMode',> 'LineStyle,-,"XData',[,'YData',D >>for k 1: length(t)-1 >>p1ot(Ix(k),X(k+1)],[Y(k),Y(k+1)], 'Color,'yellow,'EraseMode','none); >>plot([y(k,1),y(k+1,1)],[y(k,2),y(k+1,2)],-3,… green set (stickhandle,'XData',[X(k+1), y(k+1, 1)] YData’,[Y(k+1),y(k+1,2)]) >> end >〉 hold off