InfoPath Dev

I found this solution to calculate square root in infopath form: https://www.infopathdev.com/forums/p/21041/72904.aspx I need to calculate the RSD (Relative Standard Deviation) in a repeating table. This solution works fine but not in a repeating table. Does anyone knows how can I use this in a repeating table?

I modified this sample to have a repeating table - if you are using a browser form, you may want to verify this works as anticipated in the browser prior to adding this logic to your own form.

Thank you so much Hillary, you are wonderful :)