LinearAlgebra/tridiag/SymTridiagonal/Tridiagonal block matrix @test #= /cache/build/tester-amdci5-10/julialang/julia-master/julia-5fe40c6d34/share/julia/stdlib/v1.13/LinearAlgebra/test/tridiag.jl:500 =# @inferred A[2, 1] == transpose(M)