Merge pull request #848 from SciML/myb/d

Some imports

Author: ChrisRackauckas

Project.toml

@@ -64,7 +64,7 @@ Setfield = "0.7"
 SpecialFunctions = "0.7, 0.8, 0.9, 0.10, 1.0"
 StaticArrays = "0.10, 0.11, 0.12, 1.0"
 SymbolicUtils = "0.8.3"
-Symbolics = "0.1"
+Symbolics = "0.1.2"
 TreeViews = "0.3"
 UnPack = "0.1, 1.0"
 Unitful = "1.1"

src/ModelingToolkit.jl

@@ -42,7 +42,7 @@ import Symbolics: rename, get_variables!, _solve, hessian_sparsity,
                   tosymbol, lower_varname, diff2term, var_from_nested_derivative,
                   BuildTargets, JuliaTarget, StanTarget, CTarget, MATLABTarget,
                   ParallelForm, SerialForm, MultithreadedForm, build_function,
-                  unflatten_long_ops
+                  unflatten_long_ops, rhss, lhss, prettify_expr
 
 import DiffEqBase: @add_kwonly
 

src/systems/abstractsystem.jl

@@ -341,9 +341,6 @@ for f in [:states, :parameters]
     @eval $f(sys::AbstractSystem, vs::AbstractArray) = map(v->$f(sys, v), vs)
 end
 
-lhss(xs) = map(x->x.lhs, xs)
-rhss(xs) = map(x->x.rhs, xs)
-
 flatten(sys::AbstractSystem) = sys
 
 function equations(sys::ModelingToolkit.AbstractSystem)