Fix order of multiplication in mixed-product rule

JuliaLinearAlgebra · Jun 24, 2024 · cd7aace · cd7aace
1 parent ee91b4f
commit cd7aace
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diff --git a/Project.toml b/Project.toml
@@ -1,6 +1,6 @@
 name = "LinearMaps"
 uuid = "7a12625a-238d-50fd-b39a-03d52299707e"
-version = "3.11.2"
+version = "3.11.3"
 
 [deps]
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"

diff --git a/test/kronecker.jl b/test/kronecker.jl
@@ -86,6 +86,10 @@ using Test, LinearMaps, LinearAlgebra, SparseArrays
         Kv = LinearMaps.CompositeMap{ComplexF64}(fill(LA ⊗ LB, 3))
         @test kron(A, B)^3 * ones(6) ≈ Kv * ones(6)
         @test Matrix(K) ≈ kron(A, B)^3
+        A = [0 1; 0 0]
+        B = [0 0; 1 0]
+        J = LinearMap(I, 1)
+        @test Matrix(kron(J, A*B)) == Matrix(kron(J, A) * kron(J, B))
         # example that doesn't use mixed-product rule
         A = rand(3, 2); B = rand(2, 3)
         K = @inferred kron(A, LinearMap(B))