LinearAlgebra/addmul/mul!(::Matrix{ComplexF64}, ::LinearAlgebra.UpperTriangular{ComplexF32, S} where S<:AbstractMatrix{ComplexF32}, ::LinearAlgebra.SymTridiagonal{Float32, V} where V<:AbstractVector{Float32}, α, β)/α = true, β = -0.7352586700932019 - 2.015837280405147im @test ≈(collect(returned_mat), exp_val, rtol = rtol, atol = atol)