Hi I'm noob in Latex and I began to use Lyx because it is much simpler to type in mathematical symbols. I'm typing in 5*5 matrix, but it appears too small so I want to increase spaces between each rows. This is my original matrix, latex code (I'm not sure if latex code is needed cuz I always work in Lyx.)
\begin{pmatrix}\frac{\omega}{k_{\bot}}-v_{E} & -1 & 0 & 0 & 0\\
0 & \Omega_{e} & \nu_{en} & 0 & 0\\
-ik\frac{k_{B}T}{m_{e}} & \nu_{en} & -\Omega_{e} & \frac{i}{m_{e}} & 0\\
-\frac{\omega}{k} & 0 & 0 & 0 & 1\\
k_{\bot}v_{th,i}^{2} & 0 & 0 & -\frac{1}{m_{i}} & \omega+i\nu_{in}
\end{pmatrix}\begin{pmatrix}\frac{\delta n}{n_{0}}\\
\delta v_{ey}\\
\delta v_{ez}\\
k_{\bot}e\delta\varphi\\
\delta v_{iy}
\end{pmatrix}=0
When I google it, I can see advices to use \renewcommand{\arraystretch}{1.5} like that, but I'm not sure how to use it. I inserted \usepackage{array} in preamble (is is needed?)
And I tried to type in \renewcommand at the space for the first element but Lyx does not recognize that command. I tried other spots but I couldn't find the space it works.
Can somebody help me to clear this thing?
{\renewcommand{\arraystretch}{1.5}
just before your code and}
just after [both in newlines] – koleygr Feb 27 '18 at 22:44