Text Formatting ⇒ Add a line above/below the section title

[jjmm]

Hi,

(1) I manage to add a line above and below the title. I modify some codes I search from the web, and I can only add a line below the title, but I do not know how to add a line above the section title. Could someone show me how to do it?
(2) Another thing I would like to do is to add a dot after the section number, e.g., I would like "3. The application of ......", but I have "3 The application of ......" Thanks!

The core codes are as follows:

Code: Select all

Code, edit and compile here:

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\usepackage[explicit]{titlesec}
\definecolor{Blue}{rgb}{0,0,0.8}
.......
\titleformat{\section}
{\normalfont\large\bfseries\color{Blue}}
{\titlerule\vspace{1pc}\thesection}
{1em}
{#1}
[{\titlerule[0.8pt]}]
 
 
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Run LaTeX here

Complete codes:

Code: Select all

Code, edit and compile here:

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\documentclass[11pt]{article}
\usepackage{amsmath,amssymb,amsthm}
\usepackage{graphicx}
\usepackage[margin=1in]{geometry}
\usepackage{fancyhdr}
\usepackage[shortlabels]{enumitem}
\usepackage{enumitem}
\usepackage{xcolor}
\usepackage[explicit]{titlesec}
\definecolor{Blue}{rgb}{0,0,0.8}
\setlength{\parindent}{0pt}
\setlength{\parskip}{5pt plus 1pt}
\setlength{\headheight}{13.6pt}
\numberwithin{equation}{section} 
\titleformat{\section}
{\normalfont\large\bfseries\color{Blue}}
{\titlerule\vspace{1pc}\thesection}
{1em}
{#1}
[{\titlerule[0.8pt]}]
\newcommand\question[2]{\vspace{.25in}\hrule\textbf{#1. #2}\vspace{.5em}\hrule\vspace{.10in}}
\renewcommand\part[1]{\vspace{.10in}\textbf{(#1)}}
\pagestyle{fancyplain}
\lhead{\textbf{\NAME}}
\chead{\textbf{Econ 100A HW\HWNUM}}
\rhead{\today}
\begin{document}\raggedright
\newcommand\NAME{John Smith}  
\newcommand\HWNUM{3}              
\section{First section}
\section{Lucas puzzle}
\section{The Application of}
\section{Capital Control and NDF}
xxxx
\section{Cagan variant and exchange rates}
\begin{enumerate}[(a)]
 
 
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Run LaTeX here

[cgnieder]

See Update: Add a line above/below section title (titlesec pkg)