LinearAlgebra/addmul/mul!(::Matrix{BigFloat}, ::LinearAlgebra.Tridiagonal{Float64, V} where V<:AbstractVector{Float64}, ::LinearAlgebra.Diagonal{Float32, V} where V<:AbstractVector{Float32}, α, β)/α = 0.7378435067125816981814523387583903968334197998046875, β = 0.0/adjoint and transpose/fa = transpose, fb = transpose @test returned_mat === Ccopy