LinearAlgebra/addmul/mul!(::Matrix{BigFloat}, ::LinearAlgebra.UnitLowerTriangular{Float64, S} where S<:AbstractMatrix{Float64}, ::LinearAlgebra.UnitLowerTriangular{Int32, S} where S<:AbstractMatrix{Int32}, α, β)/α = 0.6302068016408812756168345003970898687839508056640625, β = false/adjoint and transpose/fa = transpose, fb = transpose @test returned_mat === Ccopy