2021-02-03 14:03:13 +0200 received badge ● Student (source) 2021-02-03 14:02:56 +0200 received badge ● Popular Question (source) 2015-07-17 17:11:37 +0200 asked a question What is the meaning of this!! Hello every one, I am a user of Sagemath online, I wrote theses below lines to find the steady state of my problem, But at the end I have no result except this []!! I would like to know what this means? It means there is no solution for this system equations? I put my lines here. Thank so much if anyone could help me. var ('Omegabar Qbar ') Ybar=1 pbeta=.99 epsilon=-1 sigma=.03 theta=.3 k=13 delta=.025 rho=1.1 Ybar=1; Lambdabar=pbeta Rlbar=1+1/Qbar Rbar=1/pbeta Rebar=1/pbeta munbar=Lambdabar*Omegabar*Rbar musbar=Lambdabar*Omegabar*(Rlbar-Rbar) muebar=Lambdabar*Omegabar*(1-pbeta) epersbar=musbar/muebar xbar=-epersbar+(epersbar^(2)+(2/k)*(1-epsilon*epersbar))^(1/2) Thetabar=theta*(1+epsilon*xbar+(k/2)*xbar^(2)) phibar=Omegabar/(Thetabar-musbar-xbar*muebar) Ebar=xbar*Qbar Nbar=Qbar/phibar Dbar=Qbar-Nbar-Ebar Nnbar=delta*(Qbar+Ybar) eq1=Omegabar==(sigma+(1-sigma)*(munbar+phibar*musbar+phibar*xbar*muebar)) eq2=Nbar==(1-sigma)*(Qbar+Ybar-Rebar*Ebar-Rbar*Dbar)+Nnbar solve([eq1,eq2], Qbar) ----------- (Omegabar, Qbar) []