If I use the basic article class, this goes away, but I'm supposed to use a .cls file provided. How do I change this behavior? I'm not ready to dive into .cls files yet.
I want to start a new paragraph, indented by 0.25in with some extra space after it, like 0.1in, roughly the equivalent of <CR>,<TAB> in a typical word processor.
If I use \\ and then \indent and \setlength{\parindent}{0.25in} I can get the newline with the correct indenting, but the spacing is the same as the text. I want the paragraphs to be a bit separate from each other. \setlength{\parskip}{0.1in} only seems to work with \paragraph{}.
The command \\ is designed to produce a line break inside a paragraph; do not use it together with a blanck line to increase the vertical separation between paragraphs; it will produce a bad box.
Changing \parskip is also not a good idea (read the l2tabu document to know the reason).
To increase the vertical separation between paragraphs, you can use the commands \smallskip, \medskip or \bigskip, as the following example suggests:
\documentclass{article}
\usepackage{graphicx}
\begin{document}
paragraph 1 text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text.
paragraph 2 text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text.\smallskip
\noindent paragraph 3 text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text.\medskip
\noindent paragraph 4 text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text.\bigskip
\noindent paragraph 5 text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text.
\end{document}
Of course, if the separation between paragraphs has been increased, then the indentation is superfluous; you can suppress the indentation for individual paragraphs by using the \noindent command (as I did in my example); if you want to suppress the indentation for every paragraph, then you can add
\documentclass{article}
\usepackage{graphicx}
\begin{document}
paragraph 1 text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text.
paragraph 2 text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text.\smallskip
\noindent paragraph 3 text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text.\medskip
\noindent paragraph 4 text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text.\bigskip
\noindent paragraph 5 text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text.
\end{document}
The only difference is to remove the lines between the paragraphs. I had been writing this way and the above gives me one great big paragraph with odd extra-spaced lines where the skip commands are.
Is it normal that spaces and carriage returns matter in LaTeX code? I'm not used to worrying about them.