LinearAlgebra/addmul/mul!(::LinearAlgebra.LowerTriangular{BigFloat, S} where S<:AbstractMatrix{BigFloat}, ::LinearAlgebra.LowerTriangular{BigFloat, S} where S<:AbstractMatrix{BigFloat}, ::LinearAlgebra.LowerTriangular{BigFloat, S} where S<:AbstractMatrix{BigFloat}, α, β)/α = -0.13114202952524911527376616504625417292118072509765625, β = -0.13114202952524911527376616504625417292118072509765625/α = 0 ignores A .= NaN @test returned_mat === Ccopy