How to edit a function in a table in an OpenOffice Writer document?
OpenOffice Writer has a neat trick of using formulas in an ordinary table.
Typing = in any cell in a table brings up the Formula toolbar and you can type a formula a formula in a similar way as you would do in a spreadsheet application.
Once you have the formula in the cell, you may want to edit the formula.
To edit a formula click in the cell with the formula you would like to edit and press F2, this will bring up the Formula toolbar when you can edit the formula.