Show Unread Email in Gmail Inbox

I like to use gmail to manage my other email accounts. But sometimes gmail will mess up and get some old emails into inbox, and unread emails will be buried in those endless gmail threads. I googled a useful tip that can only show those unread threads in Inbox. Put it here in case I will forget.

Just copy and paste on the gmail search box:
in:inbox + is:unread

Tips for learning Latex

Useful Latex tutorial:

1. The Not So Short Introduction to Latex2et

2. Getting to grips with Latex

3.Latex中文资料

Tips:



1. When using natbib package to cite reference, if you want to cite the full name and year，quote the author name with parenthesis.

eg: author = "European Committee for Standardization"should be author = "{European Committee for Standardization}". The result will be (European Committee for Standardization, 2005)

2.some tips for citing equations with parenthe

http://bbs.ctex.org/redirect.php?tid=27187&goto=lastpost&styleid=7

像(1-1)这样的公式要用subequations，例如：

\documentclass{article}

\def\sub{\renewcommand{\theequation}{\theparentequation{}-\arabic{equation}}}

\usepackage[leqno]{amsmath}

\begin{document}
\begin{subequations}
\sub
\begin{equation}
\int_a^bf(x)\mathrm{d}x=F(-F(a))\label{a}
\end{equation}
\begin{equation}
\int_a^bf(x)\mathrm{d}x+abcd=F(-F(a))\label{b}
\end{equation}
\end{subequations}
Equation \eqref{a} and \eqref{b}
\end{document}

如果用\def\sub{\renewcommand{\theequation}{\theparentequation{}.\arabic{equation}}}，显示：公式(1.1)

去掉\sub，显示：公式(1a)

3. How to write ordinal number, like 1st(st on the right top of 1), without using amsmath package.

using \usepackage{engord}, then just input \engordnumber{3} in text, the ordinal number will be automatically generated.

4. How to type in Celsius symbol

method 1:
\usepackage{textcomp}
\textcelsius
method 2：
$30\,^{\circ}\mathrm{C}$

5. Text wrapping in tables

Must specify the column width, or latex will not wrap text in cells. Some examples are demonstrated here

6. How to write bold letters

Include \usepackage{bm}

$\bm{a}$

7. Using hyphen between$$

$P\textrm{-}\delta$

8. Add space between text

Some useful tip from here

9. How to insert a backslash or a tilde

\textbackslash
\textasciitilde
$\sim$
\texttildelow

check the link for more details

10. Some explanation about {natbib} package.

check the link

If you want to sort multiple reference by year, don't insert 'sort' into option.