本文研究了解决大型稀疏对称正定线性方程组的一类预条件共轭梯度法。
This paper is investigated a preconditioned conjugate gradient method in solving a linear algebraic system of large sparse symmetric and positive equations.
PCG算法是牛顿法和预优共轭梯度法结合起来解牛顿方程的一种非精确牛顿法。
Newton PCG method is an inexact Newton like method. It is an organic combination of Newton's method and preconditioned conjugate gradient method.
对该模型施加适当的约束和载荷，通过预前共轭梯度法，计算得到了轴类零件在常见工况-弯曲和扭转载荷作用下的位移、应力、应变等力学特性。
Results of displacement, stress and strain of the shaft under the common loads of bend and torsion are obtained by Pre-condition conjugate gradient method.
非线性优化技术、分枝定界算法和不完全乔莱斯基分解的预优共轭梯度法是该工作的三个主体部分。
Nonlinear programming techniques, branch and bound algorithms and incomplete Cholesky decomposition conjugate gradient method (ICCG) are the three main parts of our work.
本文引入预条件共轭梯度法，提出了结合频域有限差分法结合分析二维柱体的电磁散射问题。
The finite-difference frequency-domain method with preconditioned conjugate-gradient technique is presented for two-dimensional cylinder scattering problems.
本文引入预条件共轭梯度法，提出了结合频域有限差分法结合分析二维柱体的电磁散射问题。
The finite-difference frequency-domain method with preconditioned conjugate-gradient technique is presented for two-dimensional cylinder scattering problems.
应用推荐