Wirth "Algorithms & Data Structures" (1986) 的（多分？）な表 | |~7 R 10 |~-7 R 10 | |~a / b | 0 | 0 | |~a DIV b | 0 | -1 | |~a MOD b | 7 | 3 | |~a REM b | 7 | -7 | | |~7 R 10 |~-7 R 10 | |~/ | 0 | 0 | |~DIV | 0 | -1 | |~MOD | 7 | 3 | |~REM | 7 | -7 | - / は絶対値を小さく - DIV は値を小さく - (a DIV b)*b + (a MOD b) = a - (a / b)*b + (a REM b) = a 参考にしました - http://www2u.biglobe.ne.jp/~massange/cgi-bin/iroiro.cgi/prog/