I have the following table which I use to teach limits in calculus class (don't worry if you don't know what that is)
\begin{tabular}{l|l}
\bm{x} & \bm{h(x)} \\
\hline
1.9 & 3.61 \\
1.99 & 3.9601 \\
1.999 & 3.9960 \\
1.9999 & 3.9996 \\
\hline
2.0001 & 4.0004 \\
2.001 & 4.004 \\
2.01 & 4.0401 \\
2.1 & 4.41 \\
\hline
\end{tabular}
In class I point out that the numbers in the left column get closer to 2 as we got down the column by drawing an arrow down to the left of the first column for four rows and writing "2" at the bottom of it (except that I can't draw on screens).
I also point out that the bottom half of the table, left side, gets closer to 2 as we go up by drawing an arrow up the rows (to their left).
The right column gets closer to 4 and I point that out (or would if I could draw on the screen) by drawing a down arrow to the right of the right column, etc.
How can I draw an arrow over multiple rows to the right or left of those columns to show the numbers progression?
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