Merge pull request #259 from JuliaDiffEq/det

Overload det

Author: ChrisRackauckas

src/operations.jl

@@ -78,3 +78,5 @@ Base.:*(A::SparseMatrixCSC{Tx,S}, x::StridedVector{Operation}) where {Tx,S} =
     (T = LinearAlgebra.promote_op(LinearAlgebra.matprod, Operation, Tx); mul!(similar(x, T, A.m), A, x, true, false))
 Base.:*(A::SparseMatrixCSC{Operation,S}, x::StridedVector{Tx}) where {Tx,S} =
     (T = LinearAlgebra.promote_op(LinearAlgebra.matprod, Operation, Tx); mul!(similar(x, T, A.m), A, x, true, false))
+
+LinearAlgebra.lu(O::AbstractMatrix{<:Operation};kwargs...) = lu(O,Val(false);kwargs...)

test/operation_overloads.jl

@@ -0,0 +1,7 @@
+using ModelingToolkit
+using LinearAlgebra
+@variables a,b,c,d
+X = [a b;c d]
+det(X)
+lu(X)
+inv(X)

test/runtests.jl

@@ -3,6 +3,7 @@ using ModelingToolkit, Test
 @testset "Parsing Test" begin include("variable_parsing.jl") end
 @testset "Differentiation Test" begin include("derivatives.jl") end
 @testset "Simplify Test" begin include("simplify.jl") end
+@testset "Operation Overloads Test" begin include("operation_overloads.jl") end
 @testset "Direct Usage Test" begin include("direct.jl") end
 @testset "System Construction Test" begin include("system_construction.jl") end
 @testset "Build Targets Test" begin include("build_targets.jl") end