图是没什么错,主要是想把x轴的坐标间隔拉大,x值在0-10之间,但是这个图像不改变
t=[0:0.2:10];
f=sin((t.^2/pi)/4);
t2=[0:1:10];
f2=sin((t.^2/pi)/4);
hold on
stem(f);
plot(f2);
set(gca,'YTick',-1:0.5:1,'XTick',0:1:10);
t=[0:0.2:10];
f=sin((t.^2/pi)/4);
t2=[0:1:10];
f2=sin((t.^2/pi)/4);
hold on
stem(f);
plot(f2);
set(gca,'YTick',-1:0.5:1,'XTick',0:1:10);
你画图时横坐标的数值没给,程序默认使用列表索引当横坐标了
t = 0:0.2:10;
f = sin((t.^2/pi)/4);
f2 = sin((t.^2/pi)/4);
hold on;
stem(t,f);
plot(t,f2);
set(gca,'YTick',-1:0.5:1,'XTick',0:1:10);