gusucode.com > 《精通matlab 7》包括配套光盘 > 配套光盘里的程序附件/Ex-23/Ex2318.m
%例23-18 图例 x=0:0.02*pi:2*pi; y1=sin(x); y2=cos(x); y3=sin(3*x).*cos(x); plot(x,[y1;y2;y3]) axis([0 2*pi -1.5 1.5]) set(gca,'XTick',[0 pi 2*pi],'XTickLabel',{'0','pi','2pi'}) legend('sin(x)','cos(x)','sin(3x)cos(x)')