Testwiki:Reference desk/Archives/Mathematics/2021 September 6

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September 6

Fundamental theorem of calculus article text clarification request.

Regarding the article, Fundamental theorem of calculus, line 4 has "with a variable bound of integration." What does the phrase, "bound of integration" mean? I have a bachelor's degree in engineering, so am quite familiar with calculus; this phrase seems to be omitting context, or possibly has incorrect wording.

In the notation ${\int }_a^{b}f(x)dx$ for a definite integral over one variable, $a$ and $b$ are the bounds of integration.  --Lambiam 06:24, 6 September 2021 (UTC)