Overleaf Equations – How to Tidy Up Equations in Overleaf?

equationsoverleaf

I would like to write two equations (R3 and R4) in overleaf.

Since I use a template which are in two column format, the equations become untidy as in the screenshot.

Here is the code:

\begin{equation} \label{eq:R3}
R_3(i) = 
 \begin{cases} 
  (q_i.c_i + (1-q_i)p_i + (n+1)w + nv)(\frac{q_i}{m_i-z_i} +\frac{(1-q_i)}{m_i-z_i})  & \text{if } i \geq (n-1) \\
  (q_n.p_n + (1-q_n)c_n + (n+1)w + nv)(\frac{q_n}{m_n-z_n} +\frac{(1-q_n)}{m_n-z_n})       & \text{if } i = n
 \end{cases}\end{equation}

\begin{equation} \label{eq:R4}
R_4(i) = 
 \begin{cases} 
  (q_i.p_i + (1-q_i)c_i + (n+3)w + (n+2)v)(\frac{q_i}{z_i+1} +\frac{(1-q_i)}{z_i+1})  & \text{if } i \geq (n-1) \\
  (q_n.c_n + (1-q_n)p_n + (n+3)w + (n+2)v)(\frac{q_n}{z_n+1} +\frac{(1-q_n)}{z_n+1})       & \text{if } i = n
 \end{cases}\end{equation}

Then, here is the preview.

Do you have any idea how to make these equations tidier ?
I am thinking to make the font smaller however I am not sure what to do.

Thank you.

Best Answer

wrap and small fontsize

\documentclass{IEEEtran}
\usepackage{tabularray}
\usepackage{amsmath}
\usepackage{showframe}
\usepackage{lipsum}
\begin{document}
\lipsum[1-6]
\begin{equation}\label{eq:R3}
\small
R_3(i) =
\begin{cases}
\begin{tblr}{colspec={l},colsep={0pt}}(q_i.c_i + (1-q_i)p_i + (n+1)w + nv) \\ \times(\frac{q_i}{m_i-z_i} +\frac{(1-q_i)}{m_i-z_i})\end{tblr} & \text{if } i \geq (n-1) \\
\begin{tblr}{colspec={l},colsep={0pt}}(q_n.p_n + (1-q_n)c_n + (n+1)w + nv) \\ \times(\frac{q_n}{m_n-z_n} +\frac{(1-q_n)}{m_n-z_n})\end{tblr} & \text{if } i = n
\end{cases}
\end{equation}

\begin{equation}\label{eq:R4}
\footnotesize
R_4(i) =
\begin{cases}
\begin{tblr}{colspec={l},colsep={0pt}}(q_i.p_i + (1-q_i)c_i + (n+3)w + (n+2)v) \\ \times(\frac{q_i}{z_i+1} +\frac{(1-q_i)}{z_i+1})\end{tblr} & \text{if } i \geq (n-1) \\
\begin{tblr}{colspec={l},colsep={0pt}}(q_n.c_n + (1-q_n)p_n + (n+3)w + (n+2)v) \\ \times(\frac{q_n}{z_n+1} +\frac{(1-q_n)}{z_n+1})\end{tblr} & \text{if } i = n
\end{cases}
\end{equation}
\par\lipsum[1]
\end{document}

double column equation

\documentclass{IEEEtran}
\usepackage{cuted}
\usepackage{amsmath}
\usepackage{showframe}
\usepackage{lipsum}
\begin{document}
\lipsum[1-2]
\begin{strip}
\begin{equation}\label{eq:R3}
R_3(i) =
\begin{cases}
(q_i.c_i + (1-q_i)p_i + (n+1)w + nv)(\frac{q_i}{m_i-z_i} +\frac{(1-q_i)}{m_i-z_i}) & \text{if } i \geq (n-1) \\
(q_n.p_n + (1-q_n)c_n + (n+1)w + nv)(\frac{q_n}{m_n-z_n} +\frac{(1-q_n)}{m_n-z_n}) & \text{if } i = n
\end{cases}
\end{equation}
\begin{equation}\label{eq:R4}
R_4(i) =
\begin{cases}
(q_i.p_i + (1-q_i)c_i + (n+3)w + (n+2)v)(\frac{q_i}{z_i+1} +\frac{(1-q_i)}{z_i+1}) & \text{if } i \geq (n-1) \\
(q_n.c_n + (1-q_n)p_n + (n+3)w + (n+2)v)(\frac{q_n}{z_n+1} +\frac{(1-q_n)}{z_n+1}) & \text{if } i = n
\end{cases}
\end{equation}
\end{strip}
\lipsum[4-7]
\end{document}

Related Solutions

[Tex/LaTex] how to align texts in equation cases

\documentclass{article}
\usepackage{amsmath}
\begin{document}

\begin{align}\label{eq13}
  a_k =
  \begin{cases}
  1 & \text{if $f_i$ has a value $v_k$}, \\
  0 & \text{otherwise}
  \end{cases}
  \text{\quad\parbox{0.4\linewidth}{$f_i$ is a non-binary feature,\\ $k=1,...,n$}}
 \end{align}

\end{document}

enter image description here

Table of Contents – List of Equations Including Contents and Captions: A How-To Guide

Since you want a cheat sheet, I'd recommend the extract package. With a slightly different MWE:

\documentclass{article}
\usepackage[
  active,
  header=false,
  copydocumentclass=true,
  generate=\jobname-Cheatsheet,
  extract-env={equation},
  extract-cmdline={synopsis},
  ]{extract} % http://ctan.org/pkg/extract
\begin{extract*}
% Items executed in both the main and extracted document
% (extract manual, section 5.1)
\usepackage{amsmath}
\end{extract*}
\begin{extract}
% Items executed only in extracted document
\def\synopsis#1{#1}
\end{extract}
\def\synopsis#1{}
\begin{document}
First Euler observed that
\synopsis{Euler's equation tying together the five fundamental constants of mathematics}%
\begin{equation}
1 + e^{i \Pi} = 0.
\end{equation}

Then, Gauss discovered the normal distribution:
\synopsis{Normal distribution}%
\begin{equation}
P(x) = \frac{1}{{\sigma \sqrt {2\pi } }}e^{{{ - \left( {x - \mu } \right)^2 } \mathord{\left/ {\vphantom {{ - \left( {x - \mu } \right)^2 } {2\sigma ^2 }}} \right. \kern-\nulldelimiterspace} {2\sigma ^2 }}}
\end{equation}

Finally, Einstein proclaimed: 
\synopsis{Equivalence of mass and energy}%
\begin{equation}
E = m C^2
\end{equation}
\end{document}

you get an original document of:

enter image description here

and an extracted document of:

\documentclass{article}
% Items executed in both the main and extracted document
% (extract manual, section 5.1)
\usepackage{amsmath}
% Items executed only in extracted document
\def\synopsis#1{#1}

\begin{document}

\synopsis{Euler's equation tying together the five fundamental constants of mathematics}%

\begin{equation}
1 + e^{i \Pi} = 0.
\end{equation}

\synopsis{Normal distribution}%

\begin{equation}
P(x) = \frac{1}{{\sigma \sqrt {2\pi } }}e^{{{ - \left( {x - \mu } \right)^2 } \mathord{\left/ {\vphantom {{ - \left( {x - \mu } \right)^2 } {2\sigma ^2 }}} \right. \kern-\nulldelimiterspace} {2\sigma ^2 }}}
\end{equation}

\synopsis{Equivalence of mass and energy}%

\begin{equation}
E = m C^2
\end{equation}

\end{document}

and:

enter image description here

This also works with your original \caption command.

Best Answer

wrap and small fontsize

double column equation

Related Solutions

[Tex/LaTex] how to align texts in equation cases

Table of Contents – List of Equations Including Contents and Captions: A How-To Guide

Related Question