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PCG

于 2007-11-16 发布 文件大小:1KB
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  % SSOR预处理的共轭梯度法求解方程Ax=b % 输入参数说明 % A 正定矩阵[n*n] % b 右边向量 % omega SSOR预处理参数(0--2) % Times 迭代次数 % errtol 给定误差终止条件 % %输出参数 % NewX 方程Ax=b的x近似解 % avgerr 求解的当前平均绝对误差( SSOR preconditioning conjugate gradient method for solving equations Ax = b the input parameter descriptions A positive definite matrix [n* n] b right side vector omega SSOR preconditioning parameters (0- 2) Times iterations errtol termination of a given error condition NewX output parameter equation Ax = b of x approximate solution to solve the current avgerr average absolute error)

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PCG.m

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