NISHIO Hirokazu[Translate]
差の和は和の差
\sum_{s\in S} (f(s) - g(s)) = \sum_{s\in S} f(s) - \sum_{s\in S} g(s)

"Engineer's way of creating knowledge" the English version of my book is now available on [Engineer's way of creating knowledge]

(C)NISHIO Hirokazu / Converted from [Scrapbox] at [Edit]