From: Matt Huszagh <huszaghmatt@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Issues with nested begin..end blocks in inline math environments
Date: Fri, 6 Dec 2019 11:42:40 -0800 [thread overview]
Message-ID: <CA+X8ke5GZkgt3uR3o08MOZnrQ4t=tuMCSb=5Aeiq7r=7eWTyqw@mail.gmail.com> (raw)
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I'm experiencing incorrect and seemingly inconsistent behavior when nesting
`\begin` `\end` environments inside `\(\)` or `$$`. For example, the
following is valid latex code:
```
\(\begin{aligned}
b_n &= \frac{1}{\pi} \int_{0}^{\pi} x \sin{\left(nx\right)}dx \\
b_0 &= 0 \\
\int_{0}^{\pi} udv &= \left[uv\right]_{0}^{\pi}
- \int_{0}^{\pi} vdu \\
dv &= \sin{\left(nx\right)}dx \\
v(x) &= \int \sin{\left(nx\right)}dx \\
&= -\frac{\cos{\left(nx\right)}}{n} \\
\left[uv\right]_{0}^{\pi} &=
-\left[\frac{x\cos{\left(nx\right)}}{n}\right]_{0}^{\pi} \\
&= \left\{\begin{alignedat}{2}
\frac{\pi}{n}&, && \quad \text{$n$ odd} \\
-\frac{\pi}{n}&, && \quad \text{$n$ positive even} \\
\end{alignedat}\right. \\
\int_{0}^{\pi} vdu &=
\int_{0}^{\pi} -\frac{\cos{\left(nx\right)}}{n} dx \\
&= -\frac{1}{n^2} \left.\sin{\left(nx\right)}\right|_{0}^{\pi} \\
&= 0 \\
b_{n\in \mathbb{Z}^+} &= \left\{\begin{alignedat}{2}
\frac{1}{n}&, && \quad \text{$n$ odd} \\
-\frac{1}{n}&, && \quad \text{$n$ positive even} \\
\end{alignedat}\right. \\
\end{aligned}\)
```
But this confuses org which is generating images for the `\begin{aligned}`
at the top and the `\text` macros, but nothing else. Iterations on this
sometimes work fine, however. For example,
```
\(\begin{aligned}
b_{n\in \mathbb{Z}^+} &= \left\{\begin{alignedat}{2}
\frac{1}{n}&, && \quad \text{$n$ odd} \\
-\frac{1}{n}&, && \quad \text{$n$ positive even} \\
\end{alignedat}\right. \\
\end{aligned}\)
```
typesets correctly. Has anyone else had trouble with the latex fragment
regex's?
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next reply other threads:[~2019-12-06 19:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-06 19:42 Matt Huszagh [this message]
2019-12-07 11:30 ` Issues with nested begin..end blocks in inline math environments Fraga, Eric
2019-12-07 19:28 ` Matt Huszagh
2019-12-08 7:04 ` Matt Huszagh
2019-12-15 4:01 ` Matt Huszagh
2019-12-15 8:58 ` Nicolas Goaziou
2019-12-16 8:25 ` Matt Huszagh
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