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LaTeX homework template

A LaTeX homework template for the problem sets and exercise sheets a math or science course hands out.

Open in LaTeX.to Download all files (zip)

• Engine: pdfLaTeX
• Bibliography: none
• License: Public domain, use freely.
• Files:
  main.tex

  Download main.tex

  \documentclass[11pt]{article}
  \usepackage{amsmath}
  \usepackage{amssymb}
  \usepackage{amsthm}
  
  \theoremstyle{definition}
  \newtheorem{problem}{Problem}
  \newenvironment{solution}{\begin{proof}[Solution]}{\end{proof}}
  
  \title{Problem Set 1}
  \author{Your Name}
  \date{\today}
  
  \begin{document}
  \maketitle
  
  \begin{problem}
  Show that the sum of the first $n$ positive integers is $\frac{n(n+1)}{2}$.
  \end{problem}
  
  \begin{solution}
  Pairing the first and last terms gives $n/2$ pairs, each summing to $n+1$, so
  \[
    \sum_{k=1}^{n} k = \frac{n(n+1)}{2} .
  \]
  \end{solution}
  
  \begin{problem}
  Prove that $\sqrt{2}$ is irrational.
  \end{problem}
  
  \begin{solution}
  Suppose $\sqrt{2} = p/q$ in lowest terms. Then $p^2 = 2q^2$, so $p$ is even;
  writing $p = 2r$ gives $q^2 = 2r^2$, so $q$ is even too, contradicting the
  assumption that $p/q$ was in lowest terms.
  \end{solution}
  
  \end{document}
  

How to use this template

Everything runs in your browser: nothing to install, no login, no compile timeout.

• Click Open in LaTeX.to. The template opens as a project in the Projects pane, with main.tex in the editor and its finished PDF in the preview.
• Replace the placeholders, such as Your Name, with your own text. The % comments in the files mark the places to edit.
• Click Preview, or press Ctrl+Enter (Cmd+Enter on a Mac), to compile. The preview shows the new PDF; you do not need to save first.
• If the compile fails, the Console pane opens with the LaTeX log. The first error in it says what went wrong and on which line.
• To add an image, a .bib file or another .tex file, open the project's menu (the three dots next to its name in the Projects pane) and choose Upload file or New file.
• The arrow next to Preview has Download PDF. Ctrl+S saves your edits, and the project stays in your browser on this device.

How to add a problem

Problems number themselves in the order they appear in the file.

• Copy a block from \begin{problem} to \end{solution} and paste it below the last one.
• Write the question between \begin{problem} and \end{problem} and your answer between \begin{solution} and \end{solution}.
• Change \title{Problem Set 1} at the top for each new set.

How to start from a different number

A problem set often picks exercises from a textbook, and the numbers should match it.

• Put \setcounter{problem}{4} just before the first \begin{problem} to make it Problem 5.
• Put another \setcounter{problem}{...} before any problem that skips ahead; the ones after it follow on.

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