LinearAlgebra/addmul/mul!(::Matrix{Float64}, ::LinearAlgebra.Symmetric{Int64, S} where S<:(AbstractMatrix{<:Int64}), ::LinearAlgebra.Symmetric{Float64, S} where S<:(AbstractMatrix{<:Float64}), α, β)/α = -1.7130593481163316, β = -1.7130593481163316/adjoint and transpose/fa = transpose, fb = identity @test returned_mat === Ccopy