作业中的问题 h-体系H的计算

a weakness of hashing Problem: For any hash function h, a set of keys exists that can cause the average access time of a hash table to skyrocket An adversary can pick all keys from tkeU: h(k)=i for some slot i IDEA Choose the hash function at random independently of the keys

一、近轴光的矩阵表示 1.折射矩阵 我们采用(nu,h)和u,h)作为表示入射光线和折射光线的位置坐标