UC知道matlab矩阵变量
来源：百度知道 编辑：UC知道 时间：2024/07/08 02:56:54
我想求 matrix A=[sinw 1
cosw sinw]
我想得到 当w从0到2pi（x轴），eigenvalue of A的值（y轴）
应该怎么写？
why I changed the size of matrix, the error "Subscripted assignment dimension mismatch." appear? Thank you for you reply.
cosw sinw]
我想得到 当w从0到2pi（x轴），eigenvalue of A的值（y轴）
应该怎么写？
why I changed the size of matrix, the error "Subscripted assignment dimension mismatch." appear? Thank you for you reply.
A=@(w)[sin(w) 1;cos(w) sin(w)];
f=@(w)eig(A(w));
w=linspace(1e-7,2*pi-1e-7);
for i=1:100
y(:,i)=f(w(i));
end
figure('color','w')
plot3(w,real(y),imag(y));
set(gca,'xtick',linspace(0,2*pi,7),'xticklabel',{'0','π/3','2π/3','π','4π/3','5π/3','2π'});
xlabel('\omega');ylabel('特征值实部');zlabel('特征值虚部');
legend('\lambda_1','\lambda_2','location','northeast');
title(['Eigenvalues of A=$$',latex(sym('[sin(omega) 1;cos(omega) sin(omega)]')),'$$'],'interpreter','latex','VerticalAlignment','middle');
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before you change the matrix, you should clear all the variables, or some&