I have a tabular which I fill with "+" signs for some reasons.
This is what happens:
As you can see, for some reason there is space added on top of the row, making it higher. If I remove all the plus signs, the row's height is correct:
I though that might be a problem related to the size of the "+" sign, so I did a couple of tests, one with "x" and one with a random letter, in this case "i". Here are the results:
So it really seems like it depends on the character I use. Now, is there a way to use the plus sign without having such ugly whitespace on the top?