LinearAlgebra/addmul/mul!(::Matrix{Float64}, ::LinearAlgebra.Tridiagonal{Float32, V} where V<:AbstractVector{Float32}, ::LinearAlgebra.Tridiagonal{Float64, V} where V<:AbstractVector{Float64}, α, β)/α = 1.0, β = -1.049216546715559/adjoint and transpose/fa = adjoint, fb = transpose @test ≈(collect(returned_mat), exp_val, rtol = rtol, atol = atol)