LinearAlgebra/addmul/mul!(::Matrix{ComplexF64}, ::LinearAlgebra.SymTridiagonal{ComplexF64, V} where V<:AbstractVector{ComplexF64}, ::LinearAlgebra.UnitUpperTriangular{ComplexF32, S} where S<:AbstractMatrix{ComplexF32}, α, β)/α = 1.3308702542284878 - 2.100727047147056im, β = 0.0 + 0.0im/adjoint and transpose/fa = identity, fb = transpose @test returned_mat === Ccopy