# Placing a figure with subfigures immediately below paragraph title

I would like to have some paragraphs including a sequence of figures (no text at all). However I am not succeeding in placing the figures right below the paragraph title. What happens is that the paragraph title is shifted below the figures instead of remaining on top of those.

I know from this answer that I should not use a floating environment (such as the figure one) if I do not want my object to float in the document. However I need to organize my images in the same way I would do with the figure and subfigure environments. I have also tried using the H option, but it does not work. How can I achieve that?

Below a MWE for my case.

\documentclass[a4paper,12pt]{article}

\usepackage{float}    % Images formatting
\usepackage{graphicx} % Insert figures
\usepackage{subcaption}

\begin{document}
\paragraph{\boldmath$N=16$}

\begin{figure}[H]
\begin{subfigure}[b]{0.5\textwidth}
\centering
\includegraphics[height=0.55\textwidth]{example-image-a}
\end{subfigure}%
\begin{subfigure}[b]{0.5\textwidth}
\centering
\includegraphics[height=0.65\textwidth]{example-image-b}
\end{subfigure}
\caption{Illustration 1 of $N=16$}
\label{fig:ill1n16}
\end{figure}

\end{document}

• This is enough: newpage\paragraph{$\bm{N=16}$} \leavevmode \begin{figure}[H] ..... – Bernard Feb 10 '19 at 18:50
• I've taken the liberty of editing your code to make it truly minimal -- no need to have 6 figure environments over 2 pages if a singe \paragraph statement and a single figure environment will do too, right? – Mico Feb 10 '19 at 19:02
• @Bernard - You should post the \leavevmode suggestion as an answer -- and maybe provide an insight as to how and why \leavevmode "works" here? – Mico Feb 10 '19 at 19:04
• @Mico thanks for the suggestion, indeed a single figure environment does the job for the problem I was facing. – fma Feb 10 '19 at 21:03

The figure or table envitonment require to be in horizontal mode. Immediately after a \paragraph or \subparagraph command, you're in vertical mode. The \leavevmode command ensures you're no more in vertical mode, and if you add it in your code, lie this:

\paragraph{\boldmath$N=16$}
\leavevmode
\begin{figure}[H]
.........


it will work.

• You wrote, "Immediately after a sectioning command, you're in vertical mode." This is a bit too broad -- the \paragraph and \subparagraph commands appear to require \leavevmode for the problem at hand, whereas \section, \subsection, and \subsubsection do not. – Mico Feb 11 '19 at 0:44
• Do not use the [H] float positioning parameter. See [HEINOUS]{tex.stackexchange.com/questions/469880} – Peter Wilson Feb 11 '19 at 20:38
• @PeterWilson: I know, but in the present case, I think it's inevitable considering the OP's requirements, so I respected his/her code. – Bernard Feb 11 '19 at 21:09