gusucode.com > matlab通信工程仿真源码(张德丰等编著)程序书籍 > matlab_code/matlab通信工程仿真源码(张德丰等编著)/第4章/li4_6.m
x=(0:0.1:2*pi)'; y1=2*exp(-0.5*x)*[1,-1]; y2=2*exp(-0.5*5).*sin(2*pi*x); x1=(0:12)/2; y3=2*exp(-0.5*x1).*sin(2*pi*x1); plot(x,y1,'g:'); hold on; plot(x,y2,'b—'); plot(x1,y3,'rp'); grid on; box off; hold off;