# MATLAB: Plotting roots of a polynomial

plotvector

Can someone help me with how to plot the below code. I want to plot 'x' for several different inputs of 'Ta' My solution 'a' is 3 roots of a polynomial.
clcclear allsyms vsyms TTc=96.15+273 %K Pc=4990;  %KPa R=(8.314/86.47)Ta=100omega = 0.22082b=(0.0778*R*Tc)/(Pc)a=((0.45724*(R^2)*(Tc^2))/(Pc^2))*exp((2+0.836*Ta/Tc)*(1-(Ta/Tc)^(0.134+(0.508*omega)-(0.0467*omega^2))))P=inline('((0.0961*T)/(v-5.5338e-04))- (1.6795e-10/((v*(v+5.5338e-04)+5.5338e-04*(v-5.5338e-04))))','T','v')f1=diff(P(T,v),T)g1=vpa(subs(f1,T,Ta))f2=diff(P(T,v),v)g2=vpa(subs(f2,T,Ta))v=(g1/g2)*Tax=vpasolve(v)end

• syms vsyms TTc=96.15+273 %K Pc=4990;  %KPa R=(8.314/86.47)Ta=100omega = 0.22082b=(0.0778*R*Tc)/(Pc)a=((0.45724*(R^2)*(Tc^2))/(Pc^2))*exp((2+0.836*Ta/Tc)*(1-(Ta/Tc)^(0.134+(0.508*omega)-(0.0467*omega^2))))P=inline('((0.0961*T)/(v-5.5338e-04))- (1.6795e-10/((v*(v+5.5338e-04)+5.5338e-04*(v-5.5338e-04))))','T','v')f1=diff(P(T,v),T)g1=vpa(subs(f1,T,Ta))f2=diff(P(T,v),v)g2=vpa(subs(f2,T,Ta))v=(g1/g2)*TaT=vpasolve(v)vv=subs(v,v,T)plot(T,vv,'-or')