changing chapterstyle in memoir

Question

I have the following MWE

\documentclass[a4paper, 10pt]{memoir}
\usepackage[ansinew]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{amsmath, amsthm, amssymb}

\usepackage[per-mode=symbol, exponent-product = \cdot, alsoload=hep, range-units=single, tophrase={--}, separate-uncertainty]{siunitx}


\chapterstyle{madsen}
\begin{document}

\chapter{Test 1}
Test 1

{\let\clearpage\relax\chapter{Test 2}}
Test 2

\end{document}

Due to the chapterstyle, a second horizontal line appears in the middle of the page. Is there a way to remove this?

Answer 1

This is the default behavior of the madsen chapter style. So if you have two chapters in one page, you will get two horizontal lines in one page. You can break the page between chapters (which is the default behavior).

Case 1

If you want to totally remove the line between Chapter number and title, write

\renewcommand*{\afterchapternum}{%
    \par\hspace{1.5cm}\hrule\vskip\midchapskip}

after \chapterstyle{madsen}.

Case 2

To remove just the line in chapter two, write

{\renewcommand*{\afterchapternum}{%
    \par\vskip\midchapskip}
\let\clearpage\relax\chapter{Test 2}}

Here is the full code for the second case.

\documentclass[a4paper,10pt]{memoir}
\usepackage[ansinew]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{amsmath, amsthm, amssymb}
\usepackage[per-mode=symbol, exponent-product = \cdot, alsoload=hep, range-units=single, tophrase={--}, separate-uncertainty]{siunitx}

\chapterstyle{madsen}

\begin{document}

\chapter{Test 1}
Test 1

{\renewcommand*{\afterchapternum}{%
    \par\vskip\midchapskip}
\let\clearpage\relax\chapter{Test 2}}
Test 2

\end{document}