LinearAlgebra/addmul/mul!(::Matrix{Float64}, ::LinearAlgebra.Diagonal{Float32, V} where V<:AbstractVector{Float32}, ::LinearAlgebra.SymTridiagonal{Int64, V} where V<:AbstractVector{Int64}, α, β)/α = 0.36266983304934397, β = false/adjoint and transpose/fa = identity, fb = transpose @test ≈(collect(returned_mat), exp_val, rtol = rtol, atol = atol)