The method ICCG. is one of the best iterative method for solving the system of linear algebraic equations, but it can only be applied to the symmetric and positive definite coefficient matrix.
IC CG方法是解线性代数方程组较为理想的方法，但它仅适用于具有正定对称的系数阵。
The main advantage of the proposed method is: the iterative matrix is symmetric and positive definite at ea ch iteration.
该方法的主要优点在于其迭代矩阵总保持对称正定。
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