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AJAX
AJAX基礎範例,月曆,拖曳,收合面板,動畫,連動下拉選單(AJAX-based examples, calendar, drag, collapse panels, animation, and even dynamic drop-down menu)
- 2009-12-06 21:26:59下载
- 积分:1
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Cyuyan100li-p
本PDF内有100道C++基础知识的编程,讲述了各种情境下的编程方法,为初学C++着提供良好的平台实例。(This PDF is 100 basic knowledge of c++ programming, programming method, tells the story of a variety of situations for beginners c++ provides a good platform for instance.)
- 2014-07-05 18:15:10下载
- 积分:1
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opengl
Nehe的opengl全部教程,适用于c++语言,适合初学者。(All Nehe' s opengl tutorials for c++ language, suitable for beginners.)
- 2014-05-05 17:28:47下载
- 积分:1
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Ogre_sjms
OGRE 3D引擎所含设计模式之分析
OGRE 3D引擎所含设计模式之分析(not)
- 2009-05-10 18:27:59下载
- 积分:1
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foxtrader
foxtrader c language interfaces
- 2013-06-05 16:58:51下载
- 积分:1
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S7-PLCSIMV5.4
西门子仿真编程软件S7-PLCSIM V5.4,用于S7-300/400系列PLC程序的仿真(S7-PLCSIM V5.4 offers the following new features with this release:
DP, Industrial Ethernet and PC Internal connection types supported in addition to MPI
Formerly, S7-PLCSIM used a default connection of MPI, address 2. With S7-PLCSIM V5.4, you can browse STEP 7 projects and select a networked node for establishing a simulation connection. S7-PLCSIM simulates the CPU of the selected node, all nodes that belong to that CPU, and the subnet of the selected node.
Increased number of blocks supported for simulation
S7-PLCSIM supports a set of OBs, SFBs, and SFCs as described in the electronic manual and online help. Of these, some are NOPs that is, they do not perform any operation. With S7-PLCSIM V5.4, the number of blocks that are not NOPs has increased.)
- 2020-06-25 23:40:01下载
- 积分:1
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NURBS110707
高速切削加工技术是一种先进的制造技术,具有强大的生命力和广阔的应
用前景,已成为切削加工的主流。数控插补技术是数控系统实现轨迹运动控制
的基础,插补运算是CNC系统软件实现运动控制的核心模块,插补算法的优劣
将直接影响到CNC系统的性能。因此,实现一种高精度和高速度的插补方法是
插补的关键所在。
本文在分析传统基准脉冲插补、数据采样插补的算法的基础上,着重研究
了三次NURBS曲线实时插补技术,针对部分算法的不完整或效率低,提出了
一种简单快捷的插补算法。采用NURBS曲线的矩阵表达式,将整个插补过程
分解为插补预处理和实时插补。在插补预处理中完成了大量的计算,预处理的
计算结果直接应用于实时插补,使插补算法满足了NURBS曲线插补的实时性
要求,再辅以必要的轮廓误差控制,实现了加工速度自适应于加工路径的
NURBS曲线直接插补。
本文讨论的插补算法采用C++语言实现,并在VC++6.0的编程环境中实现
了插补算法的计算机仿真,验证了算法的正确性和可行性。(The high speed cutting is one of advanced manufacture technique,which has the powerful vitality and the broad application,and already became the mainstream of machining.The interpolation technology of NC is the foundation of path s control in the CNC system,and the interpolation operation is the core module of
CNC system software,which comes the motion control true.The interpolation
algorithm,whose function is good or bad,directly influences the performance of CNC system.So,a kind of interpolation method with the high accuracy and high speed is the key of interpolation.
Based on analyzing the traditional pulse interpolation and data sampling
interpolation,this paper emphasizes on the NURBS curve real-time interpolation
technology.In view of the partial algorithms which is incomplete and the low efficiency,this paper propose a simple and quick interpolation algorithm.Using the
matrix representation of NURBS curve,the whole interpolation process is divided into appropriate pretreat)
- 2011-07-07 11:46:17下载
- 积分:1
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DiscreteMathematicsandItsApplications
一本非常NB的关于计算机的离散数学与应用书籍!(Discrete Mathematics and its Applications is a focused introduction to the primary themes in a discrete mathematics course, as introduced through extensive applications, expansive discussion, and detailed exercise sets. These themes include mathematical reasoning, combinatorial analysis, discrete structures, algorithmic thinking, and enhanced problem-solving skills through modeling. Its intent is to demonstrate the relevance and practicality of discrete mathematics to all students. The Fifth Edition includes a more thorough and linear presentation of logic, proof types and proof writing, and mathematical reasoning. This enhanced coverage will provide students with a solid understanding of the material as it relates to their immediate field of study and other relevant subjects. The inclusion of applications and examples to key topics has been significantly addressed to add clarity to every subject.
True to the Fourth Edition, the text-specific web site supplements the subject matter i)
- 2009-12-07 21:32:17下载
- 积分:1
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lab1-windows
windows应用程序基础pptwindows应用程序基础ppt(windows program basic )
- 2015-12-07 15:09:46下载
- 积分:1
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my-hacker-girlfriend
一本关于黑客的电子书,这本书很火,在网上很难下载(o other about hacker book ,my girl friend
is a hacker, the book is very splendid)
- 2013-05-03 21:54:06下载
- 积分:1