My indentation has stopped working after one section of my document. Here is the beginning code:
\documentclass[11pt]{article}
\usepackage{amsfonts}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{lastpage}
\usepackage[margin=0.85in]{geometry}
\usepackage{graphicx}
\usepackage{tabu}
\usepackage{textcomp,gensymb}
\usepackage{caption}
\usepackage{float}
\usepackage{indentfirst}
\usepackage{multirow}
\usepackage{array}
\usepackage{subcaption}
\setlength{\parindent}{6.5ex}
\setlength{\parskip}{1.5em}
\begin{document}
This is the part when it does work anymore.
\section{blah blah}
Blah blah blah, $math$, blah blah, like blah:
\begin{gather*} more math \\ more math \\ more math \end{gather*}
Blah blah...
\end{document}
When I start including math environments within the paragraphs and outside, it does not seem to work anymore, what ever I try. I have tried using the \indent, using \setlength{...}, specifying all paragraphs using \par at the end, ending with \\, nothing works.
This is the part when it does work anymore.
\section{blah blah}
Blah blah blah, $math$, blah blah, like blah:
\begin{gather*} more math \\ more math \\ more math \end{gather*}
Blah blah...
After this section, no indentation works.
indentfirstpackage to indent initial paragraphs – David Carlisle Jul 06 '17 at 10:01\documentclassto\end{document}in which the paragraph is not indented. I tried that with your fragments and the paragraph afterthe heading was indented – David Carlisle Jul 06 '17 at 10:26indentfirsthas worked and the paragraph after the heading is indented – David Carlisle Jul 06 '17 at 10:28\parskipto a fixed length such as\setlength{\parindent}{6.5ex}will cause pages of text that just have paragraph breaks not to fit the page and cause under or over full messages as tex tries (and fails) to break the text into pages. – David Carlisle Jul 06 '17 at 10:31