例在[0,2*pi用红线画sin(x),用绿圈画cos(x) x=linspace(0, 2*pi,30)i 解 y=sin(x)i z=COS(×) Matlab itilo1 plot(x,y, ',x, z,'go)解 0 1 2 3 4 5 6 7 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 Matlab liti101 例 在[0,2*pi]用红线画sin(x),用绿圈画cos(x). x=linspace(0,2*pi,30); y=sin(x); z=cos(x); plot(x,y,'r',x,z,’g0')