LinearAlgebra/addmul/mul!(::Matrix{Float64}, ::LinearAlgebra.Diagonal{Float32, V} where V<:AbstractVector{Float32}, ::LinearAlgebra.SymTridiagonal{Float64, V} where V<:AbstractVector{Float64}, α, β)/α = -0.13268609193956873, β = -0.13268609193956873/α = 0 ignores A .= NaN @test returned_mat === Ccopy