How can I plot saddle path (trajectory) in dynamic system of two differential equations? I am trying to plot saddle path of Ramsey-Cass-Koopmans growth model in Maple 13, but I can't get the trajectory that goes to steady state. The system is following: > alpha := .5; theta := 1; rho := 0.5e-1; n := 0.1e-1; g := 0.2e-1; delta := 0.3e-1; > nulc := plot([((delta+rho+theta*g)/alpha)^(1/(alpha-1)), c, c = 0 .. 10], color = black, thickness = 2, labels = ["k", "c"]); nulk := plot(k(t)^alpha-(n+g+delta)*k(t), k = 0 .. 100, color = black, thickness = 2, labels = ["k", "c"]);