LinearAlgebra/addmul/mul!(::Matrix{ComplexF64}, ::LinearAlgebra.UnitUpperTriangular{ComplexF64, S} where S<:AbstractMatrix{ComplexF64}, ::LinearAlgebra.SymTridiagonal{Float32, V} where V<:AbstractVector{Float32}, α, β)/α = true, β = 0.0 + 0.0im/adjoint and transpose/fa = transpose, fb = identity @test returned_mat === Ccopy