作业帮MATLAB 这段代码正确吗分别在同一图形窗的不同子图绘制y=sin(t)sin(9t)和y=cos(t)cos(9t)及其包络线.代码：t=(0:pi/100:pi)';y1=sin(t)*[1,-1];y2=sin(t).*sin(9*t);t3=pi*(0:9)/9;y3=sin(t3).*sin(9*t3);subplot(1,2,1)plot(t,y1,'r:',
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/16 13:30:51
![MATLAB 这段代码正确吗分别在同一图形窗的不同子图绘制y=sin(t)sin(9t)和y=cos(t)cos(9t)及其包络线.代码：t=(0:pi/100:pi)';y1=sin(t)*[1,-1];y2=sin(t).*sin(9*t);t3=pi*(0:9)/9;y3=sin(t3).*sin(9*t3);subplot(1,2,1)plot(t,y1,'r:',](/uploads/image/z/10196611-43-1.jpg?t=MATLAB+%E8%BF%99%E6%AE%B5%E4%BB%A3%E7%A0%81%E6%AD%A3%E7%A1%AE%E5%90%97%E5%88%86%E5%88%AB%E5%9C%A8%E5%90%8C%E4%B8%80%E5%9B%BE%E5%BD%A2%E7%AA%97%E7%9A%84%E4%B8%8D%E5%90%8C%E5%AD%90%E5%9B%BE%E7%BB%98%E5%88%B6y%3Dsin%28t%29sin%289t%29%E5%92%8Cy%3Dcos%28t%29cos%289t%29%E5%8F%8A%E5%85%B6%E5%8C%85%E7%BB%9C%E7%BA%BF.%E4%BB%A3%E7%A0%81%EF%BC%9At%3D%280%3Api%2F100%3Api%29%27%3By1%3Dsin%28t%29%2A%5B1%2C-1%5D%3By2%3Dsin%28t%29.%2Asin%289%2At%29%3Bt3%3Dpi%2A%280%3A9%29%2F9%3By3%3Dsin%28t3%29.%2Asin%289%2At3%29%3Bsubplot%281%2C2%2C1%29plot%28t%2Cy1%2C%27r%3A%27%2C)
MATLAB 这段代码正确吗分别在同一图形窗的不同子图绘制y=sin(t)sin(9t)和y=cos(t)cos(9t)及其包络线.代码：t=(0:pi/100:pi)';y1=sin(t)*[1,-1];y2=sin(t).*sin(9*t);t3=pi*(0:9)/9;y3=sin(t3).*sin(9*t3);subplot(1,2,1)plot(t,y1,'r:',
MATLAB 这段代码正确吗
分别在同一图形窗的不同子图绘制y=sin(t)sin(9t)和y=cos(t)cos(9t)及其包络线.
代码：
t=(0:pi/100:pi)';
y1=sin(t)*[1,-1];
y2=sin(t).*sin(9*t);
t3=pi*(0:9)/9;
y3=sin(t3).*sin(9*t3);subplot(1,2,1)
plot(t,y1,'r:',t,y2,'b',t3,y3,'bo')
subplot(1,2,2)
plot(t,y2,'b')
axis([0,pi,-1,1])
这段代码是不是没有画出y=cos(t)cos(9t)啊?
这段代码没有画出y=cos(t)cos(9t)啊!
MATLAB 这段代码正确吗分别在同一图形窗的不同子图绘制y=sin(t)sin(9t)和y=cos(t)cos(9t)及其包络线.代码：t=(0:pi/100:pi)';y1=sin(t)*[1,-1];y2=sin(t).*sin(9*t);t3=pi*(0:9)/9;y3=sin(t3).*sin(9*t3);subplot(1,2,1)plot(t,y1,'r:',
重新看了你的问题,自己写了一个.
你写的代码里没有给出cos*cos,并且没有包络线.
t=(0:pi/100:pi)';
y1=sin(t).*sin(9*t);
y2=sin(t)*[1,-1];
y3=cos(t).*cos(9*t);
y4=cos(t)*[1,-1];
subplot(1,2,1)
plot(t,y1,'r');
hold on
plot(t,y2,'k');
subplot(1,2,2);
plot(t,y3,'r');
hold on
plot(t,y4,'k');