【摘要】 介绍了一种解大型复数稀疏矩阵方程组的预处理共轭梯度（ＰＣＣＧ）算法，把它运用于大型三维涡流场的计算中，通过Ｃ＋ ＋ 语言实现．首先利用Ｃ＋ ＋ 语言的特点，构造了一种新的大型复数稀疏矩阵的存储格式，然后给出了基于该存储格式的ＰＣＣＧ 法的数值算法．实例表明，该算法具有一定的实用性．更多还原

【Abstract】 An algorithm of preconditioned complex conjugate gradient (PCCG) method for solving large scale sparse complex matrix equation problem in eddy current field was discussed. First, a new memory structure for sparse complex matrix was constructed. Then, a PCCG method based on it was introduced.更多还原