LinearAlgebra/addmul/mul!(::Matrix{BigFloat}, ::LinearAlgebra.SymTridiagonal{Float64, V} where V<:AbstractVector{Float64}, ::LinearAlgebra.Bidiagonal{Float64, V} where V<:AbstractVector{Float64}, α, β)/α = true, β = 0.1707820275025649092714985499696922488510608673095703125/adjoint and transpose/fa = adjoint, fb = adjoint @test returned_mat === Ccopy