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共轭梯度法
共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数。(The Conjugate Gradient method is a method between the steepest descent method and the Newton method. It only needs to use the first derivative information, but overcomes the shortcoming of the steepest descent method and avoids the need for the Newton method to store. And the disadvantage of calculating the Hesse matrix and inverting, the conjugate gradient method is not only one of the most useful methods for solving large linear equations, but also one of the most effective algorithms for solving large-scale nonlinear optimization. Among various optimization algorithms, the conjugate gradient method is a very important one. The advantage is that the required amount of storage is small, step convergence, high stability, and no external parameters are required.)
- 2018-11-26 11:07:35下载
- 积分：1
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Cangle
进行边角网的平差，输入测量数据即可平差计算出待定点的坐标(Corner of the net adjustment, input measurement data to the adjustment calculation to be determined coordinates of the point)
- 2020-11-04 16:09:51下载
- 积分：1
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thphn63
Thaiphoon Burner old version demo, no activation required
- 2017-10-16 14:42:17下载
- 积分：1
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ee
说明： 经验模态分解以及粒子群最小二乘支持向量回归的matlab代码(Matlab code of EMD and PSO least square support vector regression)
- 2020-02-06 13:29:13下载
- 积分：1
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经验模态分解方法
说明： 本文件提供处理信号的常用算法，经验模态分解方法，对于信号的处理具有很好的处理效果(This document provides common algorithms for processing signals, empirical mode decomposition methods, and has a good effect on signal processing)
- 2021-01-28 09:19:07下载
- 积分：1
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频分复用通信模型matlab仿真研究
说明： 频分复用（Frequency division multiplexing，FDM）通信模型仿真研究。
FDM系统复用和解复用原理，编程实现FDM通信系统。(Simulation study of frequency division multiplexing communication model.
FDM system multiplexing and demultiplexing principle, programming FDM communication system.)
- 2021-03-14 20:14:42下载
- 积分：1
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an old game ...
一个挖金子的源码程序，只有机关，欢迎大家扩充-an old game ...
- 2022-02-03 05:53:31下载
- 积分：1
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vcjj6d0rmjc_pdf
飒飒多所多 不会撒谎撒不好撒比火车被西安火车萨达所大所多sa(njjsdnjsncjsasddasddsfdsgdfgfdg)
- 2017-10-01 11:55:29下载
- 积分：1
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通过数学方法确定方程中的参数实现预测目的 MATLAB
说明： 通过把分散在时间轴上的离散数据看成一组连续变化的序列，采用累加和累减的方式，将灰色系统中的未知因素弱化，强化已知因素的影响程度，最后构建一个以时间为变量的连续微分方程，通过数学方法确定方程中的参数，从而实现预测目的。(By regarding the discrete data scattered on the time axis as a series of continuous changes, and adopting the way of accumulation and subtraction, the unknown factors in the grey system are weakened, and the influence degree of the known factors is strengthened. Finally, a continuous differential equation with time as variable is constructed, and the parameters in the equation are determined by mathematical method, so as to achieve the prediction purpose.)
- 2020-03-26 20:02:08下载
- 积分：1
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Watermark_DCT 4.52.26 AM
logistics_map hi hi hi
- 2018-02-11 09:50:07下载
- 积分：1
