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The following code defines a header with a logo, a course title, an quiz title, and boxes for the student to enter in their name, id and section.

I will comment out the image since it works and does not affect the answer. How does "quiz title" end up below the horizontal line?

\documentclass{article} \usepackage[margin=0.5in]{geometry} \usepackage{calc} \usepackage{amsmath} \usepackage{multirow} \usepackage{graphicx} \NewDocumentCommand{\ans}{O{} O{36}}{% \fbox{\makebox(#2 pt,18pt){}} } % Define the quiz environment \newenvironment{quiz}[2][]{% \begin{flushleft} \begin{tabular}{cccccc} \multirow{2}{*}{ %\includegraphics[width=40pt]{rulogo.png} } & & & \small{Name} & \small{NetID} & \small{Section} \\ & #1 & #2 & \ans[][162] & \ans[][50] & \ans \\ \end{tabular} \end{flushleft} \hrule }{% } \begin{document} \begin{quiz}{mycourse}{quiz title} \end{quiz} \end{document}

The same thing happens if I just create a single line of output. I could understand if the line overflowed and the last item spilled onto the next line, but how does #2 jump out of the middle?

\begin{flushleft} \includegraphics[width=1cm]{logo.png} #1 #2 \ans[][144] \ans[][50] \ans \\ \end{flushleft}
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    unrelated, but size commands do not take an argument, use \small Name not \small{Name} Commented May 13, 2024 at 14:32
  • why is \ans defined with an optional argument that is never used? Commented May 13, 2024 at 14:44

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You use two mandatory arguments in \begin{quiz}{mycourse}{quiz title}. So you want to define it as \newenvironment{quiz}[2]{...} instead of \newenvironment{quiz}[2][]{...}. Otherwise latex will look for an optional argument and treat the second {...} as part of the environment body.

MWE:

\documentclass{article} \usepackage[margin=0.5in]{geometry} \usepackage{calc} \usepackage{amsmath} \usepackage{multirow} \usepackage{graphicx} \NewDocumentCommand{\ans}{O{} O{36}}{% \fbox{\makebox(#2 pt,18pt){}} } % Define the quiz environment \newenvironment{quiz}[2]{% \begin{flushleft} \begin{tabular}{cccccc} \multirow{2}{*}{ \includegraphics[width=40pt]{example-image-duck} } & & & \small Name & \small NetID & \small Section \\ & #1 & #2 & \ans[][162] & \ans[][50] & \ans \\ \end{tabular} \end{flushleft} \hrule }{% } \begin{document} \begin{quiz}{mycourse}{quiz title} \end{quiz} \end{document}

enter image description here

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