Preamble: something is suppressing fbox containing instructions at top of math worksheet

Question

Here's the instructions that aren't appearing when I compile in overleaf:

 \fbox{\fbox{\parbox{\dimexpr\textwidth-4\fboxsep-4\fboxrule}{
    \textbf {Simplify by expansion and steps shown in class. Your answer should have only POSITIVE EXPONENTS.

Not sure if this matters, there's an error at the 2nd last line of code \end task:

underfull \hbox (badness 10000) in paragraph

Thanks very much for taking time to read and respond to my query.

MWE:

\documentclass[12pt]{exam}

%\printanswers % uncomment to print solutions.
\printanswers
\renewcommand{\solutiontitle}{}
% MACROS
%Not sure all of these packages are necessary...but the 'taks package is certainly necessary
\usepackage{amsmath}
\usepackage{cancel}
\usepackage{tikz}
\usepackage{graphicx}
\usepackage{pgfplots}
\usepackage{caption} % allows captions in minipage envir (issue w/solutions envir)
\usepackage{amssymb}
\usepackage{mathrsfs}
\usepackage{framed} %box para
\usepackage{tkz-euclide}
\usepackage{multicol}
\usepackage{tasks}
\pgfplotsset{compat=1.10}
%\displaystyle for all $$ math environments use \lim\limits for other environments

\usepackage[a4paper,margin=0.5in,include head]{geometry}

\everymath{\displaystyle}

%\unframedsolutions % uncomment to remove boxes from solutions

\setlength\parindent{1em}

\pagestyle{head}
\header{Pre-Alg. 8.1.6 D6 Exponents Quiz:Product and Product Properties }
       {}
       {03/10/20} 

\newcommand{\pagetop}{%
  \makebox[\textwidth]{Name:\enspace\hrulefill}\par
  \vspace{4mm}
  \fbox{\fbox{\parbox{\dimexpr\textwidth-4\fboxsep-4\fboxrule}{
    \textbf {Simplify by expansion and steps shown in class. Your answer should have only POSITIVE EXPONENTS.
     \bigskip
    \\Show all work/steps on this page.}

  }}}\par
  \bigskip
  \vspace{0.5mm}
}

\settasks{after-item-skip=1em,
          after-skip=2cm,
          label-width=2em,
          item-indent=3em,
          label=(\arabic*),
          column-sep=2em
          }

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% -------------------------- DOCUMENT STARTS HERE-------------------- 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{document}

%\pagetop
\begin{tasks}%
[style=enumerate](2)
% Prob #1
\task $3x^4\cdot 4x^3$
\begin{solutionorbox}[5cm]
$8x^3y^0\cdot 7xy^3$
\\\\
$8^1x^3 \cancel{y^0}\cdot 7^1x^1y^3$
\\\\
$8^1\cdot 7^1\cdot x^3\cdot x^1 \cdot y^3$
\\\\
$8\cdot 7\cdot x\cdot x \cdot x\cdot x\cdot y\cdot y\cdot y$
\\\\
$8\cdot 7\cdot x^4\cdot y^3$
\\\\
$56x^4y^3$
\end{solutionorbox}
% Prob #2
\task $7x^2\cdot 4x^3$
\begin{solutionorbox}[5cm]
$-8uv^3\cdot 7u^4v^2$
\\\\
$(-8)^1u^1v^3 \cdot 7^1u^4v^2 $
\\\\
$(-8)^1\cdot 7^1\cdot u^1\cdot u^4\cdot v^3\cdot v^2$
\\\\
$(-8)\cdot 7\cdot u\cdot u\cdot u\cdot u\cdot u\cdot v\cdot v\cdot v\cdot v\cdot v$
\\\\
$(-8)\cdot 7\cdot u^5\cdot v^5$
\\\\
$-56u^5v^5$

\end{solutionorbox}


\end{tasks}

\end{document}

Your document produces the error ! LaTeX Error: \begin{document} ended by \end{tasks}. and is missing \begin{document} and \begin{tasks} — David Carlisle, Mar 10 '20 at 16:19
@DavidCarlisle...I apologize for not including more of the code in my MWE. I edited my OP to include all the relevant code. If you run it now, you'll notice the missing \hbox containing text for the math worksheet. Thanks for your assistance! — Siuslaw Math, Mar 10 '20 at 16:35
\\\\ ouch:-) that is what is generating all those warnings, — David Carlisle, Mar 10 '20 at 16:48
you are not very clear on what you expect, what text is missing? you have some text in a command called \pagetop but you never use that command, or do you mean some different text? — David Carlisle, Mar 10 '20 at 16:50
Also on \everymath : https://tex.stackexchange.com/a/323375/1090 — David Carlisle, Mar 10 '20 at 17:05
@DavidCarlisle, simple yet perfect fix! Many thanks! Any idea why -- despite the rendering being correct -- when I un-comment \page top an overfill \hbox occurs? Also, I appreciate the links you provided. How can I mark my question as answered? — Siuslaw Math, Mar 10 '20 at 17:17
the box is full width but indented by parindent so overfull by that amount — David Carlisle, Mar 10 '20 at 18:20

score 1 · Accepted Answer · answered Mar 10 '20 at 19:40

1

The text doesn't appear as it is commented out, but apart from that it needs to be prefixed by \noindent as it is a full width box but indented as the start of a paragraph so sticks into the right margin with an overfull box warning.

The underfull box warnings are (as almost always the case) due to misuse of \\ simply replace the \\\\ by a blank line and set up \parskip to give whatever vertical space you need between paragraphs.

answered Mar 10 '20 at 19:40

David Carlisle

757,742

The suggestion to set up \parskip to create vertical space between lines and thereby eliminate the use of \\\\ is a huge time saver in terms of reduced keystrokes. Also, really cleans up the code. – Siuslaw Math Mar 11 '20 at 19:09

Preamble: something is suppressing fbox containing instructions at top of math worksheet

1 Answers1