LinearAlgebra/tridiag/elty = Float64/tril/triu @test #= /cache/build/tester-amdci5-11/julialang/julia-master/julia-96a43b6159/share/julia/stdlib/v1.13/LinearAlgebra/test/tridiag.jl:165 =# @inferred(triu(Tridiagonal(dl, d, du), 1)) == Tridiagonal(zerosdl, zerosd, du)