一个“对称矩阵相乘”的实例。其中包含5个源文件。编译运行后，由用户输入两个矩阵，程序自动输出结果-a "symmetric matrix multiplication" examples. Containing five source files. Compiling and running, two from user input matrix, automatically output

实对称正定矩阵LDL^分解，其中L为单位下三角矩阵，D为对角阵-A recursive algorithm for calculating the eigenvalues of a real symmetric matrix based on LDLT decomposition is given. With this algorithm, the number of eigenvalues of a real symmetric matrix in the given interval c

用豪斯尔德变换将对称矩阵约化为对称三角矩阵-With symmetric matrix , transformation into a symmetric triangular matrix