Topic summaryPiecewise differentiable Expand Summary Extracted from the Wikipedia article Piecewise function. References^.^ ^.^^ 22. doi:10.14321/realanalexch.31.1.0013 (inactive 2025-08-11).{{}}: CS1 maint: DOI inactive as of August 2025 ()^^^^^ . Shearlets. Birkhäuser: 1–38. Here: p.8^ 1589. arXiv:1002.2661. doi:10.1016/j.jat.2011.06.005. Wikipedia source
