LinearAlgebra/addmul/mul!(::Matrix{BigFloat}, ::LinearAlgebra.SymTridiagonal{BigFloat, V} where V<:AbstractVector{BigFloat}, ::LinearAlgebra.UnitLowerTriangular{BigFloat, S} where S<:AbstractMatrix{BigFloat}, α, β)/α = 1.0, β = 0.6535643321338009403831392774009145796298980712890625/adjoint and transpose/fa = transpose, fb = transpose @test returned_mat === Ccopy