On Wed, Feb 01 2023, Ihor Radchenko <yanta...@posteo.net> wrote:

> Rick Hu <y...@virtu.com> writes:
>
>> Example text in org mode:
>> \begin{align}
>> H_1(x) = & 3 x^2 - 2 x^3 \\
>> S_1(x) = &  -2 x^2 + x^3 \\
>> \end{align}
>>
>> When I export this to html and display on a browser, the spacing
>> between the equal sign and the terms behind is very small.
>> This is not the right amount around an equal sign.
>
> Could you please elaborate? Maybe attach a screenshot?


Not a bug. See the attached.

Leo

#+TITLE: [BUG] LaTeX aligned equations do not have right spacing
#+AUTHOR: L. Butler
#+OPTIONS: toc:nil num:nil

* Report
#+begin_example
From: Rick Hu <y...@virtu.com>
Subject: [BUG] LaTeX aligned equations do not have right spacing [9.6.1
 (release_9.6.1 @ /home/yhu/dev/prefix/org-mode/emacs/site-lisp/org/)]
To: "emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>
Date: Mon, 30 Jan 2023 20:38:43 +0000 (2 days, 15 minutes, 16 seconds ago)

Example text in org mode:
\begin{align}
H_1(x) = & 3 x^2 - 2 x^3 \\
S_1(x) = &  -2 x^2 + x^3 \\
\end{align}

When I export this to html and display on a browser, the spacing
between the equal sign and the terms behind is very small.
This is not the right amount around an equal sign.

Emacs  : GNU Emacs 28.2 (build 1, x86_64-pc-linux-gnu)
of 2022-09-21
Package: Org mode version 9.6.1 (release_9.6.1 @ /home/yhu/dev/prefix/org-mode/emacs/site-lisp/org/)
#+end_example

* Analysis
Let's typeset the \LaTeX{} code above:

\begin{align}
H_1(x) = & 3 x^2 - 2 x^3 \\
S_1(x) = &  -2 x^2 + x^3 \\
\end{align}

There are a few errors, I think, with the \LaTeX{} not Org. Here is the correction:

\begin{align}
H_1(x) & = 3 x^2 - 2 x^3 \\
S_1(x) & = -2 x^2 + x^3
\end{align}

Note that the spacing around the ~=~ sign is correct and there is no spurious third equation label.

** Corrected source

#+begin_example
\begin{align}
H_1(x) & = 3 x^2 - 2 x^3 \\
S_1(x) & = -2 x^2 + x^3
\end{align}
#+end_example

* Conclusion

Not a bug.

Attachment: hu.pdf
Description: hu.pdf

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