基于C++编程的多线程的多波前稀疏矩阵的QR分解，Timothy A. Davis编写-SuiteSparseQR is an implementation of the multifrontal sparse QR factorization method. Parallelism is exploited both in the BLAS and across different frontal matrices using Intel s Threading Building Blocks

一个简单的矩阵运算器，加，减，乘，求逆 性能较好 十字链表存储 QR分解法 稀疏矩阵-A simple matrix calculator, addition, subtraction, multiplication, inverse orthogonal list storage better performance sparse matrix QR decomposition