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SQLite3Develop
Sqlite3 的确很好用。小巧、速度快。但是因为非微软的产品,帮助文档总觉得不够。这
些天再次研究它,又有一些收获,这里把我对 sqlite3 的研究列出来,以备忘记。(Sqlite3 really good use. Small, fast. But for the Microsoft products, always feel that not enough to help document. This
Some day to study it, and have some harvest, here I study on SQLite3 list, to forget.)
- 2012-09-25 17:13:03下载
- 积分:1
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反演(第一章)
说明: 北京大学地球物理反演课程的一些资料,很有用,讲一些地球物理反演的理论和方法(Geophysical inversion)
- 2019-03-19 08:41:45下载
- 积分:1
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Hertz2D
说明: 主要计算了轮轨接触2D算法,是很好的一个程序 简单明了(The 2D algorithm for wheel rail contact is mainly calculated It's a good program to be simple and clear)
- 2018-03-09 15:13:07下载
- 积分:1
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RS232Demo
MFC编写的RS232 Demo,可供新手借鉴,VS可直接运行。(MFC RS232 Demo)
- 2021-01-04 13:09:01下载
- 积分:1
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CLOCK
钟面上的时针和分针之间的夹角总是在 0 ~180之间 ( 包括 0 和180 ) 。举例来说,在十二点的时候两针之间的夹角为 0 ,而在六点的时候夹角为180 ,在三点的时候为90 。本题要解决的是计算 12:00 到 11:59 之间任意一个时间的夹角。(The angle between the hour and minute hands of the clock face is always between 0 to 180 (including 0 and 180). For example, twelve o' clock, when the angle between the two pin 0, in the six o' clock when the angle is 180, three points for 90. This question must be resolved are the angle of the calculation of 12:00 to 11:59 any one time.)
- 2011-06-28 13:14:11下载
- 积分:1
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Matlab
说明: 使用MATLAB进行简正波模型的计算说明书(Using MATLAB to calculate the normal mode model)
- 2020-09-17 16:11:25下载
- 积分:1
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example_dsp
DSP28335芯片官方提供的一些头文件及源文件,(some header files and source files of DSP28335)
- 2020-06-22 20:40:01下载
- 积分:1
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4.3
说明: 通过74HC573实现单片机控制数码管的亮灭循环滚动播放。这个功能主要是想拓展AVR单片的I/O引脚,使单片机的引脚可以实现更多功能(Realize single-chip control digital tube through 74HC573)
- 2018-12-28 20:55:33下载
- 积分:1
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Polar-master
说明: 实现polar码的简单编译码,包括编码和译码环节(Simple compilation of polar codes)
- 2020-06-11 16:30:07下载
- 积分:1
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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