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Your first lab report in LaTeX as an undergrad

From zero to a compiling report: template, equations, figures, references, and a compile path that does not require administering TeX Live by hand.

You do not need to master LaTeX to finish a lab report. You need a template, a few commands, and a compile button that works on day one. Everything else can wait until a later course asks for a thesis-class document.

This is a short path that prioritizes a clean PDF over perfect typesetting.

Skip the multi-gigabyte install if you can

A desktop research editor with a bundled engine (for example Oleafly) gets you to a PDF without administering TeX Live. You get templates, error cards on the line that broke, PDF beside the source with click-to-jump, and file history without a separate Git course. If your instructor requires a specific distribution or Overleaf, follow the course notes. Otherwise optimize for starting.

Cloud editors are fine too when the course already uses them. The goal is a PDF on time, not a toolchain identity.

Steal a skeleton, then delete half of it

Start from a simple article template:

\documentclass[11pt]{article}
\usepackage[margin=1in]{geometry}
\usepackage{amsmath,graphicx}
\begin{document}
\title{Lab 3: RC circuits}
\author{Your Name \and Lab Partner}
\date{Due date}
\maketitle


\section{Objective}
\section{Method}
\section{Results}
\section{Discussion}
\section{Conclusion}
\end{document}

More detail: compile your first PDF and the quick reference.

Delete sections your rubric does not ask for. Do not copy a 40-package thesis preamble “just in case.” Extra packages are how beginners get errors they cannot read.

Equations for the lab, not for a textbook

Inline: $F = ma$. Display:

\[
  v = v_0 + at
\]

Number only what you cite later with \eqref. If the TA asked for uncertainty, put it in a sentence or a small table, not a ten-line align you do not understand yet. Fractions: \frac{a}{b}. Square roots: \sqrt{x}.

When the compile log says something scary, fix the first error only, then recompile. Later errors are often noise from the first one.

One figure, done well

Export a plot as PDF or PNG from your analysis tool. Include it with:

\begin{figure}[htbp]
  \centering
  \includegraphics[width=0.85\textwidth]{plot.pdf}
  \caption{Measured voltage vs time for trial 2.}\label{fig:vr}
\end{figure}

In the text: Figure~\ref{fig:vr} shows.... Caption below the figure. Label after the caption. If the figure floats to the wrong page, shrink width slightly before you fight placement options for an hour: float placement.

Tables without suffering

For a few rows, a simple tabular is enough. Put a caption above with table

  • \caption. Align numbers so the TA can scan them. You do not need publication-grade booktabs on lab 1, but avoid vertical line soup if you can.

References without a PhD bibliography workflow

For three citations, a manual list works:

\begin{thebibliography}{9}
\bibitem{textbook}
  Author, \emph{Title}, year.
\end{thebibliography}

For more, export a .bib from Google Scholar or Zotero and clean the keys so they are short and readable. Broken cites print as [?]: clearing mystery citation marks.

Cite the lab manual and the textbook the way the course asks (IEEE, APA-ish, or a simple numbered list). Matching the rubric beats matching a journal.

Common beginner errors

  • Forgetting \usepackage{graphicx} before \includegraphics
  • Special characters like % and _ in text without escaping
  • Mismatched $ math delimiters
  • Filenames with spaces (my plot.pdf) that break includes
  • Editing a different folder than the one you compile

Slow down, fix the first log line, recompile.

Hand in the PDF, keep the source

Submit what the LMS asks for (usually PDF). Keep the .tex and figures in a folder you still have after the course ends. Future you will reuse the skeleton for the next report. If your editor keeps Git history automatically, even better: you can recover a version from before you deleted the correct equation.

A 90-minute first session

If you are starting tonight:

  1. Open a template or paste the skeleton above.
  2. Fill title, name, section headings from the rubric.
  3. Add one equation you already know is correct.
  4. Export one plot; include it; caption it; cite it in Results.
  5. Add two references the way the course asks.
  6. Compile until the PDF looks like a report, not a blank article.

Stop when the rubric is covered. Do not spend the night on package options.

When something breaks

Read only the first error. Common fixes: missing $, missing package for graphics, wrong filename, extra }. Save a copy of a compiling version before big edits so you can walk back. If a classmate’s preamble works for the course, borrow the minimum packages they used, not the whole thesis stack.

What success looks like

The PDF opens, margins look reasonable, figures have captions, equations are readable, and the rubric items are clearly headed. That is enough for a first LaTeX lab report. Typography perfection can wait for a paper that actually needs it.

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