What is the use of colspan and rowspan

Answer 1

rowspan="n" for merging n number of rows
colspan="n" for merging n number of columns

Answer 2

like<table>
<tr>
<td rowspan=2>1</TD>
<TD>2</td>
</tr>
</table>
rowspan means merge two row at time using

Answer 3

just think you are making a calculator then we can use rowspan and make it equal to a no. and this number is the no. of cell a row should span. and same goes for colspan.

Answer 4

split the cell at time using rowspan and colspan