已知关系R由关系矩阵M给出，要求判断由M表示的这个关系是否为自反关系和对称关系。-Known relationship between the R by the relationship matrix M given by M, said the requirements to determine this relationship for the reflexive and symmetric relations.

利用托马斯方法解对称性三角矩阵的matlab代码-Using the Thomas method for solving symmetric triangular matrix matlab code

c语言基础程序，判断一个方阵是否为对称矩阵，仅供参考-Determine whether a square symmetric matrix