该方法是在Fortran 编译环境下通过幂法反幂法的计算矩阵特征值的源代码-The method is a Fortran compiler environment through the source code of the inverse power law power method to calculate the matrix eigenvalue

这个程序主要用来求解上三角或下三角矩阵的逆矩阵，Fortran编写。-inverse matrix