See *Conventions Governing Order of Evaluation <http://www.jsoftware.com/papers/EvalOrder.htm>* (from 1966) of Iverson's analysis of the situation, and what APL (and J) has done about it.
On Wed, Sep 25, 2019 at 1:28 AM R.E. Boss <[email protected]> wrote: > From > https://www.quantamagazine.org/the-math-behind-a-faster-multiplication-algorithm-20190923/ > “This summer, battle lines< > https://twitter.com/pjmdolI/status/1155598050959745026?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1155598050959745026&ref_url=https%3A%2F%2Fwww.nytimes.com%2F2019%2F08%2F02%2Fscience%2Fmath-equation-pedmas-bemdas-bedmas.html> > were drawn over a simple math problem: 8 ÷ 2(2 + 2) = ? If you divide 8 by > 2 first, you get 16, but if you multiply 2 by (2 + 2) first, you get 1. So, > which answer is right? The conflict grew so heated that it made the pages > of The New York Times< > https://www.nytimes.com/2019/08/02/science/math-equation-pedmas-bemdas-bedmas.html>. > And as the comments section shows, even a professional mathematician > weighing in on the matter wasn’t enough to bring the two sides together.” > > > R.E. Boss > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
