I am having a problem defining the Rossler system using the following way~
##eom~~
@inline @inbounds function rossler_eom( u, p, t)
a = p[1]; b = p[2]; c = p[3]
du1 = -u[2] - u[3]
du2 = u[1] + a*u[2]
du3 = b + (u[1] - c)*u[3]
return SVector{3}(du1, du2, du3)
end
##jacobian~~
@inline @inbounds function rossler_jac( u, p, t)
a ,b ,c = p
jac = @SMatrix [0 -1 -1;
1 a 0;
(0) (0) (u[1]-c)]
return jac
end
u0 = rand(3)
parameters = [0.2, 0.2, 5.7]
perturbation = [0,0,0]
perturbation[p_i] = 1
perturbed_parameters = parameters + Δp*perturbation
rossler_o = ContinuousDynamicalSystem(rossler_eom, u0, parameters, rossler_jac)
rossler_p = ContinuousDynamicalSystemn(rossler_eom, u0, perturbed_parameters, rossler_jac)
return rossler_o, rossler_p
end
tevolve = 50.00
time_step = 0.02
transient_time = 0
ross_o, ross_p = generate_rossler(rand(3), 0.01, 3)
tr_o = trajectory(ross_o, tevolve; Δt= time_step , Ttr= transient_time )
tr_p = trajectory(ross_p, tevolve; Δt= time_step , Ttr= transient_time )
returns this output
UndefVarError: ContinuousDynamicalSystemn not defined
Stacktrace:
[1] generate_rossler(::Array{Float64,1}, ::Float64, ::Int64) at ./In[6]:28
[2] top-level scope at In[7]:4774: ```