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# biber (biblatex) warning related to accent character

add the following lines to suppress the warning caused by accent characters written in bib file.

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}

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# LaTeX: xbb not found

.xbb file contains the boundingbox information of its corresponding file. When LaTeX returns an error message “XXX.xbb” not found, we should generate .xbb file by executing the following command:
extractbb XXX.pdf

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# compile latex document written in Japanese on Ubuntu 14.04

```sudo apt-get install texlive-lang-cjk
uplatex -shell-escape %s.tex
pbibtex %s.tex
uplatex -shell-escape %s.tex
uplatex -shell-escape %s.tex
dvidfmx %s.dvi
```
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# Beamer: Navigation bar jumps to wrong slide

I made some slides using Beamer, however I thought Beamer has a serious problem and therefore I gave up using it. The problem is navigation bar icon jumps to wrong slide, which is the next slide of the right one. Back to the problem again, I could find a solution to fix the problem, actually it’s not a problem at all.

Carefully looking at links in a generated pdf, the navigation bar icons specify the right slides and the wrong behavior is due to pdf viewer. Following a discussion, a solution is to set pdf viewer single-page mode. With this setting, all my Beamer slides behave as expected 🙂

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# latex command comparing before edit and after edit

In preamble, define as

```\usepackage{color} % for changing font color
\usepackage{ulem} % to strike out sentence(s)
\newcommand{\yuji}[2]{\textcolor{red}{\sout{#1}} \textcolor{blue}{#2}}
```

In text body, call the defined command as

```Yuji is \yuji{ugly}{great}.
```

The result is

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