How Do Mathematicians Prefer to Notate Integrals with dx?

  • Context: High School 
  • Thread starter Thread starter PhysicsGente
  • Start date Start date
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Discussion Overview

The discussion revolves around the preferred notation for integrals, specifically the placement of "dx" in expressions such as ∫(...)dx versus ∫dx(...). Participants explore their personal preferences, reasoning behind their choices, and the implications of different notational styles in mathematical contexts.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Mathematical reasoning

Main Points Raised

  • Some participants prefer placing "dx" after the integrand, arguing it aligns with the idea of integrating a function with respect to a variable.
  • Others advocate for placing "dx" before the integrand, suggesting it is more intuitive as part of the integral symbol.
  • One participant notes that using ∫dx(f(x)) can lead to ambiguity and prefers to keep "dx" at the end to avoid confusion.
  • Another participant expresses that the notation ∫dxf(x) has a specific interpretation, while also acknowledging its inconsistency in practice.
  • Several participants discuss the implications of treating "dx" as an operator, with some suggesting that it should not be viewed as merely a closure of the integral.
  • There is mention of how the length of the integrand can influence the placement of "dx," with shorter integrands favoring placement at the end.
  • Some participants engage in a discussion about the typographical conventions for "d," debating whether it should be italicized or in Roman font.

Areas of Agreement / Disagreement

Participants express differing preferences and reasoning regarding the placement of "dx" in integral notation. There is no consensus on a single preferred style, and multiple competing views remain throughout the discussion.

Contextual Notes

Participants highlight that the notation can vary based on context, such as mathematics versus physics, and that certain notational choices may lead to ambiguity or clarity depending on the situation.

  • #31
I also like:<br /> \int\left(\int\limits_{\stackrel{\int}{a^b}}^{\stackrel{\int f(x)^{\frac{\int}{\iiint^\frac{\rm d}{\oint}}}}{{\rm d}x}}\otimes{\rm d}x \int_b^a\right)x{\rm d}<br />
 

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