中文说明：附件中的pdf文件是韩国作者08年在Automatica上发表的文章。本代码给出了文章中定理1的线性矩阵不等式的求解程序，通过给定不同的a来求解最大的b,进而得到界定时滞系统的最小的椭圆。
English Description：
PDF file is contained in the annex Korea author 08 presented at Automatica article. This code gives the articles of Theorem 1 in linear matrix inequation Solver, solves the biggest b given different a and get the smallest ellipse that defines time-delay systems.