Someone made a great comment about the matrix approach to teaching the derivative and deleted it, maybe because it wasn't rigorous. Seems like "Differentiation

Someone made a great comment about the matrix approach to teaching the derivative and deleted it, maybe because it wasn't rigorous. Seems like "Differentiation Matrices" is the technical term: https://tobydriscoll.net/fnc-julia/bvp/diffmats.html https://tobydriscoll.net/fnc-julia/bvp/diffmats.html