NISHIO Hirokazu[日本語][English]

足し算の順序の変更

結合法則: $(a + b) + c = a + (b + c)$

  • 1: $\sum_i \sum_j f(i, j) = \sum_j \sum_i f(i, j)$

(C)NISHIO Hirokazu / Converted from Markdown (ja)
Source: [GitHub] / [Scrapbox]