A theory model, based on the inclusion-exclusionprinciple from combinatorics, was built to analyze the multicast blocking probability in WDM (wavelength division multiplexing) network.
通过建立一个基于组合数学中容斥原理的理论模型，分析了波分复用网络中组播的阻塞率。
2
Based on inclusionexclusionprinciple of set theory, a new algorithm to calculate the whole projective area was put forward to those overlapped complex geometrical objects in any direction.