This book is intended to be used as a textbook for graduate students studying theoretical computer science. It can also be used as a reference book for researchers in the area of design and analysis of approximation algorithms. Design and Analysis o

近似算法设计，David. P. Williamson等人，2011年。Coursera近似算法公开课遇到障碍了，在网上找了一些近似算法相关的书。比较推荐另外一本，Vijay V. Vazirani - Approximation algorithms (2004, Springer)，和课程内容更同步一些。

Recently, the simplified spherical harmonics equations (SPN) model has attracted much attention in modeling the light propagation in small tissue geometries at visible and near-infrared wavelengths. In this paper, we report an efficient numerical met