format shortGkxx = 2.0e4; kyy = 8.8e4;kxy = 1.0e3; kyx = 1.5e3; cxx = 1.0 ; cyy = 1.0; cxy = 1.0e-1; cyx = 1.0e-1; l=2; m=5; id=0.1;er=0.13-3; ez=1e-3; mu=0.02; i = sqrt(-1);syms wstiffnes_matrix=[kxx kyy 0 0; kyx kyy 0 0; 0 0 0.25*l^2*kxx 0.25*l^2*kxy;0 0 0.25*l^2*kyx 0.25*l^2*kyy]; mass_matrix=[m 0 0 0; 0 m 0 0; 0 0 id 0; 0 0 0 id]; force_unblance=[mu*er*w^2; -i*mu*er*w^2; mu*er*w^2*ez; -i*mu*er*w^2*ez]; D=stiffnes_matrix-(w^2*mass_matrix); xss=inv(D)*force_unblance p1=xss(1,1) p2=xss(2,1)p3=xss(3,1)p4=xss(4,1)set(gca, 'YScale', 'log')w = linspace(0,1200)';plot(p1,w)plot(p2,w)plot(p3,w)plot(p4,w)
i want to drwa but this error appear
Error using plot
Data must be numeric, datetime, duration or an array convertible to double.
Best Answer