LaTeX help....larger bracketing symbols

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  • Thread starter Thread starter Petrus
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Discussion Overview

The discussion focuses on how to create larger bracket symbols in LaTeX, specifically addressing formatting issues related to the appearance of brackets in mathematical expressions. Participants explore various methods for adjusting bracket sizes and discuss the implications of these methods in different contexts.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Exploratory

Main Points Raised

  • One participant inquires about making square brackets larger in LaTeX, expressing dissatisfaction with the default size.
  • Another participant suggests using the commands \left[ and \right] to automatically adjust the size of brackets based on the content.
  • It is proposed that manual sizing can be achieved using commands like \Bigl[ and \Bigr], with a list of available size commands provided.
  • A question is raised about the possibility of scaling only one bracket, indicating a desire for more specific control over bracket sizes.
  • Additional methods are shared, including the use of \middle for cases where a delimiter is needed on one side, and the use of a period (.) for an invisible delimiter on the other side.
  • A participant expresses gratitude for the tips, noting a specific example where the \left command did not work as expected, and shares a successful application of the discussed methods.

Areas of Agreement / Disagreement

Participants generally agree on the methods for adjusting bracket sizes in LaTeX, but there are questions regarding specific applications and preferences for scaling brackets.

Contextual Notes

Some participants mention limitations in using certain commands for specific expressions, indicating that the effectiveness of the methods may depend on the context of use.

Petrus
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Hello MHB,
I am curious how I can make these "[" "]" bigger in latex cause it does not look nice when I do it. Exemple:
$$[3xy+\frac{3x}{3y}\ln(2)]_{\frac{x^2}{3}}^x$$
Notice just I did just type some number but how can I make it a lot nicer in latex cause that does not really look good.

Regards,
 
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Re: Latex help

Petrus said:
Hello MHB,
I am curious how I can make these "[" "]" bigger in latex cause it does not look nice when I do it. Exemple:
$$[3xy+\frac{3x}{3y}\ln(2)]_{\frac{x^2}{3}}^x$$
Notice just I did just type some number but how can I make it a lot nicer in latex cause that does not really look good.

Regards,
\left[ and \right] will set the size automatically: $$\left[3xy+\frac{3x}{3y}\ln(2)\right]_{\frac{x^2}{3}}^x$$.

Alternatively, you can set the size manually, using commands like \Bigl[ and \Bigr], which will give $$\Bigl[3xy+\frac{3x}{3y}\ln(2)\Bigr]_{\frac{x^2}{3}}^x$$. The available sizes, in increasing order, are \bigl and \bigr, \Bigl and \Bigr, \biggl and \biggr, \Biggl and \Biggr.
 
Last edited by a moderator:
Re: Latex help

One question , can we just scale up one bracket ?

EDIT , sorry I didn't realize that Opalg already posted that .
 
Last edited by a moderator:
Re: Latex help

Thanks evryone for the answer! I will try memorize this method :)Regards,
 
Re: Latex help

Opalg said:
\left[ and \right] will set the size automatically: $$\left[3xy+\frac{3x}{3y}\ln(2)\right]_{\frac{x^2}{3}}^x$$.
To add to this, there is also \middle:
\[
P\left(A=2\middle|\frac{A^2}{B}>4\right)
\]

and "If a delimiter on only one side of an expression is required, then an invisible delimiter on the other side may be denoted using a period (.)":
\[
\left.\frac{x^3}{3}\right|_0^1
\]
(Wikibooks).
 
Re: Latex help

Evgeny.Makarov said:
...
and "If a delimiter on only one side of an expression is required, then an invisible delimiter on the other side may be denoted using a period (.)":
\[
\left.\frac{x^3}{3}\right|_0^1
\]...

Thank you tremendously...I had encountered this problem for example with:

$$\frac{dy}{dx}|_{x=1}$$

where using only the \left command would not render. Now I may write:

$$\left.\frac{dy}{dx} \right|_{x=1}$$

Very helpful tip...most appreciated! (Yes)
 

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