I had a similar reaction, expecting the text to show the mathematics of how to win street fights. I expected to read about arm length in conjunction with weapo

I had a similar reaction, expecting the text to show the mathematics of how to win street fights. I expected to read about arm length in conjunction with weapon use in equation form to solve for the maximum number of opponents who could be beaten. Then, the click-bait headline led me to a reall cool looking mathematics book! I still want the original book, though....