LinearAlgebra/addmul/mul!(::LinearAlgebra.LowerTriangular{ComplexF64, S} where S<:AbstractMatrix{ComplexF64}, ::LinearAlgebra.LowerTriangular{Float64, S} where S<:AbstractMatrix{Float64}, ::LinearAlgebra.LowerTriangular{ComplexF32, S} where S<:AbstractMatrix{ComplexF32}, α, β)/α = 1.1618609220554836 + 0.24033719733660125im, β = false/α = 0 ignores A .= NaN @test returned_mat === Ccopy