bookdown::word_document2, \begin{align}\end{align}, \\ versus \cr glitch... related to #270

[JeffreyRacine]

Greetings,

Minor glitch perhaps... using \cr to end a line with \begin{align}\end{align} produces text output instead of math output when rendered with word_document2, \\ works though.

This is related to issue #270... in fact, epub output was choking on the \cr, when I now change to \ it renders properly.

Thanks again for your wonderful efforts... the following ought to reproduce.

---
booktabs: yes
output:
  bookdown::word_document2: null
  bookdown::pdf_document2: null
  bookdown::html_document2: null
---

\begin{align}
\hat\beta&=1\\
\hat\alpha&=2
(\#eq:eqname)
\end{align}

\begin{align}
\hat\beta&=1\cr
\hat\alpha&=2
(\#eq:eqname)
\end{align}

devtools::session_info('bookdown')
Session info ---------------------------------------------------------------------------------------------------------
setting value
version R version 3.3.2 (2016-10-31)
system x86_64, darwin16.1.0
ui RStudio (1.1.66)
language (EN)
collate en_CA.UTF-8
tz America/Toronto
date 2017-02-06

Packages -------------------------------------------------------------------------------------------------------------
package * version date source
backports 1.0.5 2017-01-18 CRAN (R 3.3.2)
base64enc 0.1-3 2015-07-28 CRAN (R 3.3.0)
bitops 1.0-6 2013-08-17 CRAN (R 3.3.0)
bookdown 0.3.9 2017-02-01 Github (b73daa1)
caTools 1.17.1 2014-09-10 CRAN (R 3.3.0)
digest 0.6.12 2017-01-27 CRAN (R 3.3.2)
evaluate 0.10 2016-10-11 CRAN (R 3.3.1)
highr 0.6 2016-05-09 CRAN (R 3.3.0)
htmltools 0.3.5 2016-03-21 CRAN (R 3.3.0)
jsonlite 1.2 2016-12-31 CRAN (R 3.3.2)
knitr 1.15.8 2017-02-01 Github (yihui/knitr@b936c1e)
magrittr 1.5 2014-11-22 CRAN (R 3.3.0)
markdown 0.7.10 2016-12-16 Github (rstudio/markdown@1e1b061)
mime 0.5 2016-07-07 CRAN (R 3.3.1)
Rcpp 0.12.9 2017-01-14 CRAN (R 3.3.2)
rmarkdown 1.3.9002 2017-02-04 Github (rstudio/rmarkdown@c4908dc)
rprojroot 1.2 2017-01-16 CRAN (R 3.3.2)
stringi 1.1.2 2016-10-01 CRAN (R 3.3.1)
stringr 1.1.0 2016-08-19 CRAN (R 3.3.1)
yaml 2.1.14 2016-11-12 CRAN (R 3.3.2)

rmarkdown::pandoc_version()
[1] ‘1.19.2.1’

[yihui]

I don't know what \cr means and I have never used it. From your description, it seems \\ works, so this does not seem to be a blocking issue to you?

[JeffreyRacine]

Hi, \cr acts a bit differently from \\... \cr (carriage return) inhibits line numbering, \\ (newline) does not... both are commonly used.... once I realized \cr is not supported I used \\ but it is sub-optimal given their different effects... thanks!

\begin{align}
a&=b\cr
c&=d
\end{align}

\begin{align}
a&=b\\
c&=d
\end{align}

[yihui]

I see. I have no idea why \cr won't work, but I guess it is irrelevant to bookdown (more likely to be a problem of Pandoc, Word, or your EPUB reader). If you do not want line numbering, you may consider using the split environment: https://bookdown.org/yihui/bookdown/markdown-extensions-by-bookdown.html

[github-actions]

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