exm030502.m

matlab电子书籍

t=-3*pi:pi/10:3*pi;	
y=sin(t)./t;			
tt=t+(t==0)*eps;		
yy=sin(tt)./tt;		
subplot(1,2,1),plot(t,y),axis([-9,9,-0.5,1.2]),
xlabel('t'),ylabel('y'),title('残缺图形')
subplot(1,2,2),plot(tt,yy),axis([-9,9,-0.5,1.2])
xlabel('tt'),ylabel('yy'),title('正确图形')