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tezhengzhi
求矩阵的特征值 可以方便快捷的计算矩阵的特征值 其中包括零矩阵(Eigenvalue matrix can be convenient and efficient calculation of matrix eigenvalues, including zero matrix)
- 2009-01-04 15:39:54下载
- 积分：1
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zoj1094
zoj094
Matrix multiplication problem is a typical example of dynamical programming.
Suppose you have to evaluate an expression like A*B*C*D*E where A,B,C,D and E are matrices. Since matrix multiplication is associative, the order in which multiplications are performed is arbitrary. However, the number of elementary multiplications needed strongly depends on the evaluation order you choose.
For example, let A be a 50*10 matrix, B a 10*20 matrix and C a 20*5 matrix.
There are two different strategies to compute A*B*C, namely (A*B)*C and A*(B*C).
The first one takes 15000 elementary multiplications, but the second one only 3500.
Your job is to write a program that determines the number of elementary multiplications needed for a given evaluation strategy.
(Matrix multiplication problem is a typical example of dynamical programming.
Suppose you have to evaluate an expression like A*B*C*D*E where A,B,C,D and E are matrices. Since matrix multiplication is associative, the order in which multiplications are performed is arbitrary. However, the number of elementary multiplications needed strongly depends on the evaluation order you choose.
For example, let A be a 50*10 matrix, B a 10*20 matrix and C a 20*5 matrix.
There are two different strategies to compute A*B*C, namely (A*B)*C and A*(B*C).
The first one takes 15000 elementary multiplications, but the second one only 3500.
Your job is to write a program that determines the number of elementary multiplications needed for a given evaluation strategy.
)
- 2012-06-10 10:38:53下载
- 积分：1
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zhionan
OPCDA服务器与客户程序开发指南，作为工业控制领域的应用技术，OPC 服务器实际上涉及到的领域不仅仅是 COM 接口的实现，还包括如何将实时数据库技术融入 OPC 服务器等。对于本书而言，主要实现了 OPC 服务器的常用接口和 OPC 客户程序。(OPCDA server and client program development guide, as the field of industrial control applications technology, OPC server is actually related to the field just COM interface implementation, including how the real-time database technology into OPC server. For the purposes of this book, the main achievement of the commonly used interface of the OPC server and OPC client program.)
- 2013-03-25 21:57:18下载
- 积分：1
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2007468572761973
AHP层次分析方法的程序，VB环境下开发(AHP AHP procedure, VB Development Environment)
- 2021-04-29 12:18:43下载
- 积分：1
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tongxunlu
通讯录系统，有导入并保存数据的功能，还有增删查改(And import in the address book system, and the function of the data, and add or delete check instead)
- 2016-06-20 21:17:25下载
- 积分：1
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BitmapMenu
vc——创建带有图标的菜单BitmapMenu(vc- create a menu with icons BitmapMenu)
- 2011-07-24 20:59:03下载
- 积分：1
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TDMA
采用OPNET多址协议的仿真 比较有实用参考价值(Multiple access protocol using OPNET simulation have more practical reference value for)
- 2020-08-23 14:48:20下载
- 积分：1
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suijishuiwenxue
关于随机水文学的使用教材，便于读者们的自学(About the use of stochastic hydrology textbook, easy to readers who self-)
- 2013-09-22 10:08:32下载
- 积分：1
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Game1
在SDK源码中增加了旋转模型功能，按下A和D键可看到模型旋转动作。(Game1 )
- 2013-04-11 18:32:39下载
- 积分：1
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B11Test
一种Ipod Shuffle Cable检测程序(One kind of Ipod Shuffle Cable testing procedures)
- 2011-10-28 08:46:13下载
- 积分：1
