cuda编程，并行计算N体问题。cuda programming, parallel computing N-body problem.-cuda programming, parallel computing N-body problem.

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.