< table landscape > centering a table
## row height

How to change row height of tables in LaTeX.
### Problem

The height of cell could be not high enough for some reasons.
### Solution

If you just want to change height of all rows, just wrote \renewcommand{\arraystretch}{parameter} before this table.
### Example

### Hint

After using this renewcommand, you should change the size back to 1 by \renewcommand{\arraystretch}{1}. If you do not change it back every following array and table would become an icrease in height.
### changing one row

To change only one particular row you could use the command \rule with a width of zero and the height you want as parameter, for example \rule{0pt}{25pt}

### example 2

\documentclass{article} \begin{document} \begin{tabular}{|r|c|l|} \hline A & B & C \\ \hline 1 & 2 & 3 \\ \hline \end{tabular} \renewcommand{\arraystretch}{2} \begin{tabular}{|r|c|l|} \hline A & B & C \\ \hline 1 & 2 & 3 \\ \hline \end{tabular} \renewcommand{\arraystretch}{1} \end{document}Output:

\documentclass{article} \begin{document} \begin{tabular}{|r|c|l|} \hline A & B & C \\ \hline 1 & 2 & 3 \\ \hline \end{tabular} \begin{tabular}{|r|c|l|} \hline A & B & C \\ \hline \rule{0pt}{25pt}1 & 2 & 3 \\ \hline \end{tabular} \end{document}Output: