KnowraSturm–Liouville theoryLinked fromLinked fromThe 8 pages that link to Sturm–Liouville theory, each with the reason it gives.All 8Broader topic 2Related 4Narrower topic 2Legendre polynomialsNarrower topic: It explains why solutions of Legendre’s equation with distinct degrees are orthogonal.Legendre equationNarrower topic: In self-adjoint form, the equation yields orthogonal eigenfunctions on a bounded interval.