出处 发表于 2025-4-1 02:39:39
Textbook 2006in rule, which gives the derivative of a composite of two di?erentiable functions. The chain rule, when written in an inde?nite integral form, yields the method of substitution. In advanced calculus, the Riemann–Stieltjes integral is de?ned through the same procedure of “partition-evaluation-summati元音 发表于 2025-4-1 07:55:48
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