Collection of key-value pairs. TDictionary represents a generic collection of key-value pairs. This class provides a mapping from a collection of keys to a collection of values. When you create a TDictionary object, you can specify various combinations of initial capacity, equality operation, and initial content. You can add a key that is associated with a corresponding value with the Add or AddOrSetValue methods. You can remove entries with Remove or Clear, which removes all key-value pairs. Adding or removing a key-value pair and looking up a key are efficient, close to O(1), because keys are hashed. A key must not be nil (though a value may be nil) and there must be an equality comparison operation for keys. You can test for the presence or keys and values with the TryGetValue, ContainsKey and ContainsValue methods. The Items property lists all Count dictionary entries. You can also set and get values by indexing the Items property. Setting the value this way overwrites any existing value. The class TObjectDictionary inherits from TDictionary and provides an automatic mechanism for freeing objects removed from dictionary entries.
标签： Delphi 泛型
上传时间： 2015-07-01
上传用户：mirage
AMD发布了最新的催化剂14.12正式版，这是继14.9之后的又一个正式版本，同时还有一个别名“Omega”，因为它是一个增强AMD GPU/GPU的特殊版本，包含20多项新功能、性能增强、大量的Bug修正，是A饭绝对不容错过的。 新驱动版本号14.501.1003，操作系统支持Windows 7 SP1/8.1、Linux 32/64-bit，硬件支持Radeon HD 5000/5000M以来的所有显卡和APU，但是注意在APU上不支持32位Windows系统。
上传时间： 2015-07-02
上传用户：zhxblz
matlab有限元网格划分程序 DistMesh is a simple MATLAB code for generation of unstructured triangular and tetrahedral meshes. It was developed by Per-Olof Persson (now at UC Berkeley) and Gilbert Strang in the Department of Mathematics at MIT. A detailed description of the program is provided in our SIAM Review paper, see documentation below. One reason that the code is short and simple is that the geometries are specified by Signed Distance Functions. These give the shortest distance from any point in space to the boundary of the domain. The sign is negative inside the region and positive outside. A simple example is the unit circle in 2-D, which has the distance function d=r-1, where r is the distance from the origin. For more complicated geometries the distance function can be computed by interpolation between values on a grid, a common representation for level set methods. For the actual mesh generation, DistMesh uses the Delaunay triangulation routine in MATLAB and tries to optimize the node locations by a force-based smoothing procedure. The topology is regularly updated by Delaunay. The boundary points are only allowed to move tangentially to the boundary by projections using the distance function. This iterative procedure typically results in very well-shaped meshes. Our aim with this code is simplicity, so that everyone can understand the code and modify it according to their needs. The code is not entirely robust (that is, it might not terminate and return a well-shaped mesh), and it is relatively slow. However, our current research shows that these issues can be resolved in an optimized C++ code, and we believe our simple MATLAB code is important for demonstration of the underlying principles. To use the code, simply download it from below and run it from MATLAB. For a quick demonstration, type "meshdemo2d" or "meshdemond". For more details see the documentation.
标签： matlab有限元网格划分程序
上传时间： 2015-08-12
上传用户：凛风拂衣袖
GRE 数学圣经，下面是详细的英文介绍： Comprehensive Prep for GRE Math Every year, students pay $1,000 and more to test prep companies to prepare for the math section of the GRE. Now you can get the same preparation in a book. Although the GRE math section is difficult, it is very learnable. GRE Math Bible presents a thorough analysis of GRE math and introduces numerous analytic techniques that will help you immensely, not only on the GRE but in graduate school as well.
标签： GRE Math 数学
上传时间： 2015-08-22
上传用户：东大寺的
国内最早推广VERILOG设计方法，有丰富工程实践经验，曾获得包括国家发明二等奖在内的多项国家级奖励，是业界公认的大师。 夏宇闻老师为VERILOG设计方法在中国的推广和应用做了大量工作，曾编写和翻译的著作有《Verilog 数字系统设计教程》、《Verilog HDL 数字设计与综合》、《SystemVerilog 验证方法学》和《数字逻辑基础与Verilog设计》等，为VERILOG设计方法在中国的推广和发展作出了卓越的贡献。夏老师严谨负责，离休后仍贡献余热，担任北京至芯FPGA培训中心顾问。
上传时间： 2015-10-22
上传用户：xlrenxuanwei
详细介绍了指针的特性
标签： 指针
上传时间： 2015-11-08
上传用户：1113012448
shell script面试问题， Top 50 Shell Scripting Interview Questions
标签： shell script面试问题
上传时间： 2015-11-08
上传用户：1罗志权
任务的栈空间完全由用户自行管理，系统只是简单的要求用户创建任务时传入栈地址，而不参与栈空间的申请和释放。大量以静态数组形式作为任务栈，极大 地浪费了嵌入式系统极为珍贵的内存空间；而有些用户在任务开始时申请了栈空间，在任务结束时却忘记释放，造成难以跟踪的内存漏洞
标签： 嵌入式 UCOS
上传时间： 2015-11-19
上传用户：bingdu123
《深入理解计算机操作系统》英文版答案
标签： 操作系统
上传时间： 2015-11-26
上传用户：太阳神1050550
课程与教学的基本原理，泰勒，经验，活动，我们如何思维。。。。 资料搜索 代码搜索 热门搜索：fpga51单片机protel99se机器人linux 单片机 dsp armProteusmat
标签： 泰勒
上传时间： 2015-12-09
上传用户：Izaya
