Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §7.1 Integration by Parts, #46 · Calculus · Techniques of integration

Strange fact: … is different from

44–54 are about optional topics at the end of the section.

Strange fact: $δ (2 x)$ is different from $δ (x)$ . Integrate them both from $- 1$ to $1$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §7.1 Integration by Parts, #46

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