例在[0,2π]用红线画sinx,用绿圈画cosx 解 MATLAB itil x=linspace(0, 2*pi,30)i y=sin(x)i z=COS(x) plot(x, y, 'r,x, z,'gO x例 在[0,2 ]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') 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 liti1 π x