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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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demo4
说明: 利用python爬虫,运用Beautifulsoup4的相关用法。(Use python crawlers to apply the relevant usage of Beautifulsoup4.)
- 2019-07-08 14:59:21下载
- 积分:1
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AD1
说明: ACO-OFDM模数转换程序,实现光通信信号调制。(ACO-OFDM analog-to-digital conversion program to achieve optical communication signal modulation.)
- 2021-03-21 23:29:16下载
- 积分:1
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平稳性测试程序
计算列车平稳性,计算sperling指标参数,可以画出频率和时间的图像(caculate the sperling index of the train)
- 2020-06-22 08:20:01下载
- 积分:1
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NEW97DMIRAGETEAM
Plugin MirageTeam 0.97d server files for .dll
- 2018-01-15 04:39:41下载
- 积分:1
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Snake games are free to manipulate the snake, to eat food, have extended and acc...
蛇类游戏是自由操纵蛇,吃东西,有延长和加速两大宝藏
- 2022-03-24 17:36:32下载
- 积分:1
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贪吃蛇游戏
一个用C++编写的贪吃蛇游戏,界面库采用的是QT(A snake game written in C++, the interface library is QT.)
- 2018-09-19 21:30:22下载
- 积分:1
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简易计算器
说明: 能进行加减乘除运算,文件内有C源码+仿真+原理图+PCB图+简易论文(Can add, subtract, multiply and divide, the file has C source code + simulation + schematic + PCB + simple paper)
- 2021-01-21 16:39:55下载
- 积分:1
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通过串口将TXT文件中的数据读取出来,并显示波形
通过串口将TXT文件中的数据读取出来,并显示波形-Through the serial port data in the TXT file to read out and display the waveform
- 2022-02-04 03:18:40下载
- 积分:1
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godunov
说明: 用godunov方法求解黎曼精确解,帮助理解黎曼问题,了解计算流体力学(Solving Riemann exact solution by Godunov method.Help to understand Riemann problem and computational fluid dynamics.)
- 2021-04-24 02:18:47下载
- 积分:1