In this paper, a computer program for determining near earthquake time and space parameters is designed, on the basis of memory gradient method for unconstrained optimization.
基于无约束最优化问题的记忆梯度法，本文设计了测定近震时空参数的计算机程序。
The conjugate gradient method (CGM) and fast Fourier transform (FFT) technique are used to reduce the necessary memory and CPU time.
在求解过程中应用共轭梯度法(CGM)和快速傅立叶变换(FFT)相结合的方法降低所需计算机内存和CPU时间。
In chapter 4, a implementation version is given for the trust region gradient method with memory model. Numerical results show that this scheme is feasible.
第四章给出了带记忆模型信赖域梯度的算法的具体实现方案，数值实验结果表明该方案是可行的。
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