@@ -8,11 +8,13 @@ eqs = [D(x) ~ a * y + t, D(y) ~ b * t]
88
99@test all (is_variable .((odesys,), [x, y, 1 , 2 , :x , :y ]))
1010@test all (.! is_variable .((odesys,), [a, b, t, 3 , 0 , :a , :b ]))
11- @test variable_index .((odesys,), [x, y, a, b, t, 1 , 2 , :x , :y , :a , :b ]) == [1 , 2 , nothing , nothing , nothing , 1 , 2 , 1 , 2 , nothing , nothing ]
11+ @test variable_index .((odesys,), [x, y, a, b, t, 1 , 2 , :x , :y , :a , :b ]) ==
12+ [1 , 2 , nothing , nothing , nothing , 1 , 2 , 1 , 2 , nothing , nothing ]
1213@test isequal (variable_symbols (odesys), [x, y])
1314@test all (is_parameter .((odesys,), [a, b, 1 , 2 , :a , :b ]))
1415@test all (.! is_parameter .((odesys,), [x, y, t, 3 , 0 , :x , :y ]))
15- @test parameter_index .((odesys,), [x, y, a, b, t, 1 , 2 , :x , :y , :a , :b ]) == [nothing , nothing , 1 , 2 , nothing , 1 , 2 , nothing , nothing , 1 , 2 ]
16+ @test parameter_index .((odesys,), [x, y, a, b, t, 1 , 2 , :x , :y , :a , :b ]) ==
17+ [nothing , nothing , 1 , 2 , nothing , 1 , 2 , nothing , nothing , 1 , 2 ]
1618@test isequal (parameter_symbols (odesys), [a, b])
1719@test all (is_independent_variable .((odesys,), [t, :t ]))
1820@test all (.! is_independent_variable .((odesys,), [x, y, a, :x , :y , :a ]))
@@ -23,10 +25,10 @@ eqs = [D(x) ~ a * y + t, D(y) ~ b * t]
2325@variables x y z
2426@parameters σ ρ β
2527
26- eqs = [0 ~ σ* (y - x),
27- 0 ~ x* (ρ - z) - y,
28- 0 ~ x* y - β* z]
29- @named ns = NonlinearSystem (eqs, [x,y, z],[σ,ρ, β])
28+ eqs = [0 ~ σ * (y - x),
29+ 0 ~ x * (ρ - z) - y,
30+ 0 ~ x * y - β * z]
31+ @named ns = NonlinearSystem (eqs, [x, y, z], [σ, ρ, β])
3032
3133@test ! is_time_dependent (ns)
3234
@@ -37,20 +39,20 @@ Dtt = Differential(t)^2
3739Dt = Differential (t)
3840
3941# 2D PDE
40- C= 1
41- eq = Dtt (u (t,x)) ~ C^ 2 * Dxx (u (t,x))
42+ C = 1
43+ eq = Dtt (u (t, x)) ~ C^ 2 * Dxx (u (t, x))
4244
4345# Initial and boundary conditions
44- bcs = [u (t,0 ) ~ 0. ,# for all t > 0
45- u (t,1 ) ~ 0. ,# for all t > 0
46- u (0 ,x) ~ x* (1. - x), # for all 0 < x < 1
47- Dt (u (0 ,x)) ~ 0. ] # for all 0 < x < 1]
46+ bcs = [u (t, 0 ) ~ 0.0 ,# for all t > 0
47+ u (t, 1 ) ~ 0.0 ,# for all t > 0
48+ u (0 , x) ~ x * (1.0 - x), # for all 0 < x < 1
49+ Dt (u (0 , x)) ~ 0.0 ] # for all 0 < x < 1]
4850
4951# Space and time domains
50- domains = [t ∈ (0.0 ,1.0 ),
51- x ∈ (0.0 ,1.0 )]
52+ domains = [t ∈ (0.0 , 1.0 ),
53+ x ∈ (0.0 , 1.0 )]
5254
53- @named pde_system = PDESystem (eq,bcs,domains,[t,x],[u])
55+ @named pde_system = PDESystem (eq, bcs, domains, [t, x], [u])
5456
5557@test pde_system. ps == SciMLBase. NullParameters ()
5658@test parameter_symbols (pde_system) == []
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