Add an equation at the bottom of a two-column conference paper

The following related problem is what I am looking for but still cannot solve my question:

I am using a two-columns conference paper template, and I want to put the equation at the bottom of page.

\documentclass[conference]{IEEEtran}
\usepackage{blindtext, graphicx}
\usepackage{amsmath}
\usepackage[tc]{titlepic}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{lipsum}
\usepackage{float}
\usepackage{cuted}
\usepackage{amsthm}
\newtheoremstyle{case}{}{}{}{}{}{:}{ }{}

\begin{document}

\begin{strip}
\begin{equation}
\begin{aligned}
R = \begin{bmatrix} c\theta+n_1^2(1-c\theta) & n_1n_2(1-c\theta)    -n_3s\theta     & n_1n_3(1-c\theta)+n_2s\theta \\n_2n_1(1-c\theta)+n_3s\theta &     c\theta+n_2^2(1-c\theta) & n_2n_3(1-c\theta)-n_1s\theta \\n_3n_1    (1-c\theta)-n_2s\theta & n_3n_2(1-c\theta)+n_1s\theta & c\theta+n_3^2       (1-c\theta) \end{bmatrix}.
\end{aligned}
\end{equation}
\end{strip}

\end{document}

However, this equation shows up in the middle of that page. I want to put it at the bottom not the middle of page. How to fix it?

• Your code shows only the equation. How do you want we can test what's happening? – Bernard Dec 24 '16 at 2:19
• @Bernard I have no idea how to put my whole article here, which is too long. Could anyone please just show me how to do it? Or you could put arbitrary contents besides the equation. – sleeve chen Dec 24 '16 at 2:24
• The requirement is to use \begin{equation} \end{equation}. – sleeve chen Dec 24 '16 at 2:26
• Just put the preamble and some text with the lipsum package, for instance, so as to reproduce your problem. – Bernard Dec 24 '16 at 2:29

try to enclose your equation in \begin{figure*} ... \end{figure*}. with use of package stfloats it can be set on bottom of page: \documentclass[conference]{IEEEtran}
\usepackage{blindtext, graphicx}
\usepackage{amsmath}
\usepackage[tc]{titlepic}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{lipsum}
\usepackage{float}
\usepackage{cuted}
\usepackage{amsthm}
\newtheoremstyle{case}{}{}{}{}{}{:}{ }{}

\usepackage{showframe}% <-- only for show page layout, in real document had to be deleted
\renewcommand*\ShowFrameColor{\color{red}}

\begin{document}
\lipsum
\begin{equation}
2+2=4
\end{equation}
\lipsum
\begin{figure*}[b]
\begin{equation}
\begin{aligned}
R = \begin{bmatrix}
c\theta+n_1^2(1-c\theta) & n_1n_2(1-c\theta)-n_3s\theta
&   n_1n_3(1-c\theta)+n_2s\theta    \\
n_2n_1(1-c\theta)+n_3s\theta
&   c\theta+n_2^2(1-c\theta)
& n_2n_3(1-c\theta)-n_1s\theta      \\
n_3n_1 (1-c\theta)-n_2s\theta
& n_3n_2(1-c\theta)+n_1s\theta & c\theta+n_3^2(1-c\theta)
\end{bmatrix}.
\end{aligned}
\end{equation}
\end{figure*}
\lipsum[3-9]
\end{document}
• Thanks. Just one question: what is \lipsum, \lipsum[3-9], what do they mean? – sleeve chen Dec 24 '16 at 2:38
• \lipsum generate dummy text, with option  is selected second paragraph in this text, with [3-9] paragraphs from 3 to 9. With this paragraphs are simulated real text (which is not known to us). – Zarko Dec 24 '16 at 2:52

Zarko's answer was very helpful. I did as the answer described. My document had two column format.

The equation went to the bottom of the complete document. Instead, I wanted it to stay the bottom of the current page.

To solve this I went to "stfloats" documentation.

Dblfloats will appear on the same page where they are defined if they are defined on left column and enough free place is available on the current column/page.

This fixed my problem. Thank you.