Thanks for that. It is interesting that when i was in high school I thought mathematics was a waste of time and something i did not do well at. I studied architecture in school and eventually settled on being a draftsman as my profession until i got into estimating. I can remember early on in my training that i would not be needing much math in my future endeavors. I might have to rethink that. But then again at 62 ….. well …..