Used it in practice in my head the other day - even nailed the sqrt to a decimal point. I have created human life, but I think I was more proud of this lol

That is one reason I don't like D&D, it is a glorified boardgame the hides it's wargame roots under a very thin layer. I like tactical rpg on the computer but investing that level of math and detail in a pen & paper game is so boring, for me at least.