离散数学离散数学 (14).pdf
Computer Science&Technology0Computer Science&Technology1Computer Science&Technology2Computer Science&Technology3Computer Science&Technology4Computer Science&Technology5Computer Science&Technology6Computer Science&Technology7Computer Science&Technology8Computer Science&Technology9Computer Science&Technology10A=a1,a2,a3,a4a1a2a3a41000010000100001AIRComputer Science&Technology11A=a1,a2,a3,a4a1a2a3a40000101000000000AIR Computer Science&Technology12A=a1,a2,a3,a4a1a2a3a410000010010000011RR1000001001000001Computer Science&Technology13A=a1,a2,a3,a4a1a2a3a400001110000000011RRAI1RRAI矩阵反对称,除主对角线上可能有相同元素1外,其他地方都不能相同Computer Science&Technology14A=a1,a2,a3,a4a1a2a3a411011101000000002RR2RR关系的二次复合结果仍然是原关系的子集Computer Science&Technology15AIR2RR1RRAIAIR 1RRComputer Science&Technology16Computer Science&Technology17Computer Science&Technology18Computer Science&Technology19