linear problems

• 线性方程组

linear problems的用法和样例：

例句

1. Both methods result in tridiagonal systems of linear equations that can be solved efficiently.
   两种方法都形成了有效求解的三对角线的线性方程组。
2. The numerical results of some test problems show that the two-grid methods are robust in solving regularized systems.
   试验问题的数值结果表明，双网格迭代方法求解正则化后的对称正定线性方程组效果很好。