t=0

t → ∞

Traj. phase

τ = 2.02 (slider from 0 to 5, step 0.02)
E = 2.2 (slider from -5 to 5, step 0.05)
der(u) = ((-u)) / τ + E / τ
U_0 = -0.7 (slider from -5 to 5, step 0.05)
A: (U_0, der(U_0))
B: (E, 0)
Phase = Segment(A, B)