作业帮Matlab7的?Error using ==> mrdivide Matrix dimensions must agree.a=1;b=1;k=1;x=1:0.1:20;NA=-pi/2*k/(asin(a/x)+(a/x).*sqrt(1-(a/x).^2));w=1:0.01:200;K=10;num=K;den=conv([0.5 1 0],[0.2 1]);[rem,img,w]=Nyquist(num,den,w);plot(real(NA),img(NA),rem,img)gr
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/30 14:28:49
![Matlab7的?Error using ==> mrdivide Matrix dimensions must agree.a=1;b=1;k=1;x=1:0.1:20;NA=-pi/2*k/(asin(a/x)+(a/x).*sqrt(1-(a/x).^2));w=1:0.01:200;K=10;num=K;den=conv([0.5 1 0],[0.2 1]);[rem,img,w]=Nyquist(num,den,w);plot(real(NA),img(NA),rem,img)gr](/uploads/image/z/7835725-37-5.jpg?t=Matlab7%E7%9A%84%3FError+using+%3D%3D%3E+mrdivide+Matrix+dimensions+must+agree.a%3D1%3Bb%3D1%3Bk%3D1%3Bx%3D1%3A0.1%3A20%3BNA%3D-pi%2F2%2Ak%2F%28asin%28a%2Fx%29%2B%28a%2Fx%29.%2Asqrt%281-%28a%2Fx%29.%5E2%29%29%3Bw%3D1%3A0.01%3A200%3BK%3D10%3Bnum%3DK%3Bden%3Dconv%28%5B0.5+1+0%5D%2C%5B0.2+1%5D%29%3B%5Brem%2Cimg%2Cw%5D%3DNyquist%28num%2Cden%2Cw%29%3Bplot%28real%28NA%29%2Cimg%28NA%29%2Crem%2Cimg%29gr)
Matlab7的?Error using ==> mrdivide Matrix dimensions must agree.a=1;b=1;k=1;x=1:0.1:20;NA=-pi/2*k/(asin(a/x)+(a/x).*sqrt(1-(a/x).^2));w=1:0.01:200;K=10;num=K;den=conv([0.5 1 0],[0.2 1]);[rem,img,w]=Nyquist(num,den,w);plot(real(NA),img(NA),rem,img)gr
Matlab7的?Error using ==> mrdivide Matrix dimensions must agree.
a=1;
b=1;
k=1;
x=1:0.1:20;
NA=-pi/2*k/(asin(a/x)+(a/x).*sqrt(1-(a/x).^2));
w=1:0.01:200;
K=10;
num=K;
den=conv([0.5 1 0],[0.2 1]);
[rem,img,w]=Nyquist(num,den,w);
plot(real(NA),img(NA),rem,img)
grid;
xlabel('Re');
ylabel('Im');
NA那部分的代码出了问题,我该如何修改这个程序?
Matlab7的?Error using ==> mrdivide Matrix dimensions must agree.a=1;b=1;k=1;x=1:0.1:20;NA=-pi/2*k/(asin(a/x)+(a/x).*sqrt(1-(a/x).^2));w=1:0.01:200;K=10;num=K;den=conv([0.5 1 0],[0.2 1]);[rem,img,w]=Nyquist(num,den,w);plot(real(NA),img(NA),rem,img)gr
改成NA=-pi/2.*k./(asin(a./x)+(a./x).*sqrt(1-(a./x).^2));
全部改成点乘点除就可以了.