推 wsx02:離散數學(上冊) 06/13 11:45
→ still5566:從矩陣的角度去看。 06/13 11:48
→ RoyalCh:懂了 然後我是準備期末 所以沒有上冊這種東西 06/14 07:10
How many relations are there on a set with n
elements that are
b)anti-symmetric
c)asymmetric
答案分別是
2^n*3^((n)(n-1)/2)
3^(n(n-1)/2)
麻煩大家了
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