各种fortran基础源代码,包括线性方程组求解，矩阵运算，矩阵特征值与向量等等问题的求解。-The various Fortran underlying source code, including solving linear equations, matrix operations, matrix eigenvalue vector problem solving.

求解特征值问题的Fortran源代码，对结构特征值问题具有较高的计算精度和效率(Fortran source code for solving eigenvalue problems)