LinearAlgebra/addmul/mul!(::Matrix{BigFloat}, ::LinearAlgebra.UnitUpperTriangular{Int64, S} where S<:AbstractMatrix{Int64}, ::LinearAlgebra.UpperTriangular{Float64, S} where S<:AbstractMatrix{Float64}, α, β)/α = -1.62742093460246106673139365739189088344573974609375, β = 0.0/adjoint and transpose/fa = adjoint, fb = adjoint @test returned_mat === Ccopy