General ⇒ How to make parbox center in table?

[marbocam]

I have a table were I'm using parbox to be able to have equations, the problem is that I want to center the first row:

Code: Select all

Code, edit and compile here:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
\begin{table}[ht]
\caption{CURRENT AMPLITUDE RESPONSE AT LOW FREQUENCIES IN THE MMW BAND (SMALL SIGNAL REGIME)}
\centering
\begin{tabular}{lp{8cm}}
\hline\hline
& $i(2\omega_{RF}\pm\omega_{IF})$\\
\hline
OB2B& \begin{equation}
\Re P_0 m_{AM}m_{RF}^2sin^2 \varphi_{DC}  \label{gain_OB2B}
\end{equation}\\
SSMF& \begin{equation}
\Re P_0 m_{AM}m_{RF}^2sin^2 \varphi_{DC}(1\pm j \alpha \kappa P_0 \beta L \omega_{RF}) \label{gain_SSMF}
\end{equation}\\
\hline\hline
\end{tabular} \label{gainTable1}
\end{table}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Run LaTeX here

Any ideas on how to achieve this?

[Stefan Kottwitz]

Welcome to the forum!

You can insert \centering in that cell, but then also use \arraybackslash and the array package.

By the way, while commonly variables are written using an italic/cursive font, operators, units, and other expressions are usually written upright. There are commands for this, such as \sin and \cos. You can define new operators or use \mathrm for Roman (upright) font. Like this:

Code: Select all

Code, edit and compile here:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
\documentclass{article}
\usepackage[font=sc]{caption}
\usepackage{array}
\newcommand*{\AM}{\mathrm{AM}}
\newcommand*{\RF}{\mathrm{RF}}
\newcommand*{\IF}{\mathrm{IF}}
\newcommand*{\DC}{\mathrm{DC}}
\begin{document}
\begin{table}[ht]
\caption{Current amplitude response at low frequencies in the mmw band (small signal regime)}
\centering
\begin{tabular}{lp{8cm}}
\hline\hline
& \centering\arraybackslash $i(2\omega_{\RF}\pm\omega_{\IF})$\\
\hline
OB2B& \begin{equation}
\Re P_0 m_{\AM}m_{\RF}^2\sin^2 \varphi_{\DC}  \label{gain_OB2B}
\end{equation}\\
SSMF& \begin{equation}
\Re P_0 m_{\AM}m_{\RF}^2\sin^2 \varphi_{\DC}(1\pm j \alpha \kappa P_0 \beta L \omega_{\RF}) \label{gain_SSMF}
\end{equation}\\
\hline\hline
\end{tabular}\label{gainTable1}
\end{table}
\end{document}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Run LaTeX here

You can also check good modern books in your field of science how they display operators, units, and other text in mathematical equations.

You could also consider using small caps instead of writing caption texts all in capital letters, which some may not consider good style. Using \textsc, \scshape, or the caption package with sc. Click on "Run LaTeX here" to see how it looks.

Stefan

[marbocam]

Thank you ^^ You guys rock! As you can see, I'm pretty new to Latex

[marbocam]

Hi again, quick question. Is it possible to center vertically OB2B and SSMF with the equation? It would look much nicer

[Stefan Kottwitz]

Equations within a table are very unusual, so it's not directly well supported with alignment, but as a quick hack you could do a similar "equation" in the first column so it gets the same height and alignment:

Code: Select all

Code, edit and compile here:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
\documentclass{article}
\usepackage[font=sc]{caption}
\usepackage{array}
\usepackage{amsmath}
\newcommand*{\AM}{\mathrm{AM}}
\newcommand*{\RF}{\mathrm{RF}}
\newcommand*{\IF}{\mathrm{IF}}
\newcommand*{\DC}{\mathrm{DC}}
\begin{document}
\begin{table}[ht]
\caption{Current amplitude response at low frequencies in the mmw band (small signal regime)}
\centering
\begin{tabular}{p{2.5cm}p{9cm}}
\hline\hline
& \centering\arraybackslash $i(2\omega_{\RF}\pm\omega_{\IF})$\\
\hline
\[\text{OB2B}\] & \begin{equation}
\Re P_0 m_{\AM}m_{\RF}^2\sin^2 \varphi_{\DC}  \label{gain_OB2B}
\end{equation}\\
\[\text{SSMF}\] & \begin{equation}
\Re P_0 m_{\AM}m_{\RF}^2\sin^2 \varphi_{\DC}(1\pm j \alpha \kappa P_0 \beta L \omega_{\RF}) \label{gain_SSMF}
\end{equation}\\
\hline\hline
\end{tabular}\label{gainTable1}
\end{table}
\end{document}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Run LaTeX here

table-equations.png (26 KiB) Viewed 3307 times

Stefan