LinearAlgebra/addmul/mul!(::Matrix{Float64}, ::LinearAlgebra.Hermitian{Int64, S} where S<:(AbstractMatrix{<:Int64}), ::LinearAlgebra.Bidiagonal{Int64, V} where V<:AbstractVector{Int64}, α, β)/α = -0.18709749243243076, β = -0.18709749243243076 @test ≈(collect(returned_mat), exp_val, rtol = rtol, atol = atol)