InfoPath Dev

So many thanks!!!!  it works!  sorry to be a newbie ... but I selected the field by the button "Add a Field" and the formula appears by the way I wrote!   Thanks again!  

Hello everyone,  With my subject, you certainly think that I didn't search the answer, but it's completely wrong, I pass the all day to find it, but without success! I'm here because I'm going crazy with InfoPath 2007, maybe it's because I'm a newbie! So, in Infopath, I 've create a simple repeating table, and I ...