LinearAlgebra/addmul/mul!(::Matrix{Int32}, ::LinearAlgebra.Bidiagonal{Int32, V} where V<:AbstractVector{Int32}, ::LinearAlgebra.SymTridiagonal{Int32, V} where V<:AbstractVector{Int32}, α, β)/α = 1, β = 7/adjoint and transpose/fa = transpose, fb = transpose @test returned_mat === Ccopy