LinearAlgebra/addmul/mul!(::Matrix{ComplexF64}, ::LinearAlgebra.Symmetric{Int64, S} where S<:(AbstractMatrix{<:Int64}), ::LinearAlgebra.UnitUpperTriangular{Int64, S} where S<:AbstractMatrix{Int64}, α, β)/α = 1.0 + 0.0im, β = 0.4085669801848524 + 0.2523690654671175im @test ≈(collect(returned_mat), exp_val, rtol = rtol, atol = atol)