LaTeX Notes

• Installing LaTeX in Ubuntu

                  sudo apt update
                  sudo apt upgrade
                  sudo apt install texlive
                  sudo apt install texlive-lang-cjk texlive-luatex
                  sudo apt install xdvik-ja
                  sudo apt install gv
                  sudo apt install texlive-fonts-recommended texlive-fonts-extra
                  sudo apt install texlive-publishers
                  sudo apt install texlive-science
                  sudo apt install texlive-extra-utils
                  sudo apt install epstool

  You should also use IPAex fonts for Japanese fonts (I think the default font has strange spacing between characters and spaces before and after parentheses.)

                  sudo kanji-config-updmap-sys ipaex

  However, if you set this up, the text will be garbled when creating pdfs via dvips.

                  sudo cjk-gs-integrate --link-texmf --force

• View dvi files

  For English files, evince or okular is sufficient, but for Japanese files, install xdvik-ja and view them from xdvi.

• Paper landscape orientation in xdvi (landscape)

                  xdvi -paper a4r hoge.dvi

• Creating a partial pdf from dvi

                  dvipdfmx -o filename.pdf -s pages file.dvi

• graphicx options should be specified according to how you compile and the file extension you want to view

  • dvips to viewing ps files using dvips

  • dvipdfmx to view pdf files using dvipdfmx

  • pdftex to view pdf files using pdflatex

  • xdvi to view dvi files using xdvi

  Even if you use dvipdfmx to finish and turn them into pdf files, you should re-specify the options every single time to view dvi files (as one site says masochistic)

• Font size

  Specify	10pt	11pt	12pt
  \tiny	5pt	6pt	6pt
  \scriptsize	7pt	8pt	8pt
  \footnotesizesize	8pt	9pt	10pt
  \small	9pt	10pt	11pt
  \normalsize	10pt	11pt	12pt
  \large	12pt	12pt	14pt
  \Large	14pt	14pt	17pt
  \LARGE	17pt	17pt	20pt
  \huge	20pt	20pt	25pt
  \Huge	25pt	25pt	25pt

• Set a normal-looking font (Takao font) via dvipdfmx

  The pdf created by dvipdfm has all Japanese characters in Gothic.To avoid this, set Takao font.
  Refer here (Jpn). Specifically writing

                  cd /usr/share/texmf/fonts/
                  sudo mkdir truetype
                  cd truetype
                  sudo ln -s /usr/share/fonts/truetype/takao-mincho/ takao-mincho
                  sudo ln -s /usr/share/fonts/truetype/takao-gothic/ takao-gothic
                  sudo mktexlsr

  Create a file named Takao.map in /etc/texmf/dvipdfmx/ and copy the contents

                  rml  H TakaoMincho.ttf
                  gbm  H TakaoGothic.ttf
                  rmlv V TakaoMincho.ttf
                  gbmv V TakaoGothic.ttf
                
                  rml-jis H TakaoMincho.ttf
                  gbm-jis H TakaoGothic.ttf

  To actually use the font

                  dvipdfmx -f takao.map hoge.dvi

• Changing the margins

  The default margins are difficult to set; the geometry package makes it easier.

                  \usepackage{geometry}
                  \geometry{left=2cm,right=2cm,top=2.5cm,bottom=2.5cm}

• Narrow line spacing in itemize and enumerate

                  \begin{itemize}
                    \setlength{\parskip}{0pt}
                    \setlength{\itemsep}{0pt}
                    \item hoge
                  \end{itemize}

• Maybe we should stop bothering with lualatex

  Using lualatex, we don't have to worry about strange behavior around dvi and eps. The pros are that it creates pdf directly without going through dvi or ps, and that you can use pdf, png, jpg for figures. The disadvantages are that compilation is a bit heavy and error messages are hard to read.

                  \documentclass{ltjsarticle}
                  \usepackage{luatexja}
                  \usepackage[ipaex]{luatexja-preset}

  However, pdflatex is better for English text (it does not have the drawbacks of luatex above). If you use pdflatex for Japanese text, the handling of spaces is a bit tricky.

• Using cmbright, kanjifamilydefault, and amsmath in lualatex

  Apparently the order of loading in usepackage is important

                  \documentclass{ltjsarticle}
                  \usepackage{cmbright}
                  \usepackage{luatexja}
                  \usepackage[ipaex]{luatexja-preset}
                  \renewcommand{\kanjifamilydafault}{\gtdefault}
                  \usepackage{amsmath,amssymb}

• Multi-line formula environment

  Here (Jpn) was very helpful. equnarray is deprecated

  • Basic (with formula numbers)

                        \begin{align}
                        \end{align}

    & for positioning. I heard that you can use alignat if you use multiple &'s, but I don't have much oppotunity to do so, so I omitted it.

  • No formula number

                        \begin{align*}
                        \end{align*}

  • Only one formula number in multiple lines

                        \begin{align}
                        \begin{aligned}
                        \end{aligned}
                        \end{align}

    If you use multiple &, it is said to be better to use alignedat.

  • Centered aligned formula

                        \begin{gather}
                        \end{gather}

    If you use gather* instead of gather, the formula number will be lost.

  • Put only one formula number in a centered formula

                        \begin{align}
                        \begin{gathered}
                        \end{gathered}
                        \end{align}