[Tex/LaTex] Can’t get \fancyheadoffset to work

calculationserrorsfancyhdrheader-footer

I have loaded the fancyhdr package and I want to make the headers and footers wider (clamp them to the margin), so I inserted the following line after the package has loaded:

\fancyheadoffset[LE,RO]{\marginparsep + \marginparwidth}

This is from an example in the document Page layout in LaTeX. But when I try to compile I get the following error:

Missing number, treated as zero

two times, and equally many plus signs in my document. When I enter \marginparsep in the body text, I also found that this gave the same error message. Why is it missing? I need it! 😛

Best Answer

You have two options:

Load the calc package:

\usepackage{calc}
\fancyheadoffset[LE,RO]{\marginparsep + \marginparwidth}

Use the e-TeX \dimexpr:

\fancyheadoffset[LE,RO]{\dimexpr\marginparsep+\marginparwidth\relax}

Related Solutions

[Tex/LaTex] Header and Footer offset in Exam Document Class

I'm not sure to understand exactly what you want to achieve.

Anyway the commands to move headers and footers up and and down in your document when using the exam class are, respectively, \extraheadheight and \extrafootheight.

They have to be used in the preamble and their sintax is

\extraheadheight[<1st page spacing>]{<spacing>}

and

\extrafootheight[<1st page spacing>]{<spacing>}

If the optional argument is omitted, then all pages including the first are affected by these commands.

Give positive values if you want headers/footers closer to the text, negative values if you want headers/footers closer to the margins of the page.

The following is an example that shows you how they act when you give different values for the first and the running pages:

\documentclass[11pt,a4paper,fleqn]{exam}
\usepackage[utf8]{inputenc}
\usepackage[danish]{babel}
\usepackage[includemp, a4paper, textwidth=0.6\paperwidth, marginparwidth=0.2\paperwidth]{geometry}
\usepackage{lipsum} % only for the example

\pagestyle{headandfoot}
\firstpagefooter{MyName}{MyTitle}{ThePage}
\runningfooter{MyName}{MyTitle}{ThePage}
\firstpageheader{MyName}{MyTitle}{ThePage}
\runningheader{MyName}{MyTitle}{ThePage}

\extraheadheight[.25in]{.5in}
\extrafootheight[.25in]{.5in}

\title{MyTitle}
\author{MyName}

\begin{document}

\maketitle
\thispagestyle{headandfoot}
\lipsum[1-7]

\end{document}

Result:

enter image description here

[Tex/LaTex] Why doesn’t the calc package work

Well, let no one say The LaTeX Companion isn't useful! Apparently Doxygen is cribbing from it (cf. p. 250).

This works, although the appearance of the table could certainly be improved:

\documentclass[12pt]{article}
\listfiles
\usepackage{calc,xtab,array}

\newcommand{\PBS}[1]{\let\temp=\\#1\let\\=\temp}%
\newlength{\tmplength}%

\newenvironment{TabularC}[1]{%
  \setlength{\tmplength}%
  {\linewidth/(#1)-\tabcolsep*2-\arrayrulewidth*(#1+1)/(#1)}%
  \par\begin{xtabular*}{\linewidth}%
    {*{#1}{|>{\PBS
          \raggedright\hspace{0pt}} p{\the\tmplength}}|}%
  }%
  {\end{xtabular*}\par}%

\begin{document}

\begin{TabularC}{2}
  \hline \multicolumn{2}{|p{(\linewidth-\tabcolsep*2-\arrayrulewidth*1)*2/2}|}%
  {Environment  }\tabularnewline\cline{1-2}

  Gravity acceleration &0.\-0  \tabularnewline\cline{1-2}

  Water depth &0.\-0  \tabularnewline\cline{1-2}

  Water density &0.\-0  \tabularnewline\cline{1-2}

  Wave frequencies &$<$empty$>$  \tabularnewline\cline{1-2}
\end{TabularC}

\end{document}

I'm not sure what the exact problem was, maybe not loading the array package. (This is often why a minimal example is so important.)

Edit Output of \listfiles (put the command in the preamble, as [now] done above):

 *File List*
 article.cls    2007/10/19 v1.4h Standard LaTeX document class
  size12.clo    2007/10/19 v1.4h Standard LaTeX file (size option)
    calc.sty    2007/08/22 v4.3 Infix arithmetic (KKT,FJ)
    xtab.sty    2011/07/31 v2.3f Extended supertabular package
   array.sty    2008/09/09 v2.4c Tabular extension package (FMi)
 ***********

Best Answer

Related Solutions

[Tex/LaTex] Header and Footer offset in Exam Document Class

[Tex/LaTex] Why doesn’t the calc package work

Related Question