%0 Journal Article %A Muñoz, Vicente %T Integration by parts without differentiation %D 2012 %@ 1930-0980 %U https://hdl.handle.net/20.500.14352/43814 %X We prove the classical integration-by-parts formula without using differentiation. This provides an elementary illustration that integration by parts is valid for many non-differentiable functions. The proof is simple and accessible to undergraduates. %~