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Description: ************************************************************************ * * * * * THIS IS THE H Y P L A S 2.0 README FILE * * ----------------- * * * * HYPLAS is a finite element program for implicit small and large * * strain analisys of hyperelastic and elasto-plastic two-dimensional * * and axisymmetric solids * * * * HYPLAS v2.0 is the companion software to the textbook: * * EA de Souza Neto, D Peric & DRJ Owen. Computational Methods for * * Plasticity: Theory and Applications. Wiley, Chichester, 2008. * * (www.wiley.com/go/desouzaneto) * * * * Copyright (c) 1998-2008 EA de Souza Neto, D Peric, D.R.J. Owen * *----------------------------------------------------------------------* * File last updated: 18 October 2008 * * * * This file belongs in the directory ../HYPLAS_v2.0 * ************************************************************************ * * * I M P O R T A N T * * * * READ SECTIONS 0 TO 3 OF THIS FILE CAREFULLY BEFORE ATTEMPTING * * TO COMPILE AND RUN THE PROGRAM HYPLAS ON YOUR COMPUTER !! * * * * THE AUTHORS DO NOT GUARANTEE THAT ANY SUGGESTIONS/INSTRUCTIONS * * GIVEN IN THIS README FILE WILL WORK ON ANY PARTICULAR OPERATING * * SYSTEM. IF YOU DECIDE TO FOLLOW ANY SUGGESTIONS/INSTRUCTIONS * * GIVEN HERE YOU MUST DO SO AT YOUR OWN RISK. * * * * * * BUG REPORTS: Please send bug reports to * * * * hyplas_v2.0@live.co.uk * * * * Messages sent to the authors' personal email addresses * * will NOT be answered. * ************************************************************************ This file contains the following sections: 0. Copyright statement and disclaimer 0.(a) Copyright statement 0.(b) Disclaimer 0.(c) Conditions of use 1. Introduction 1.(a) Note on portability 2. Compiling and running HYPLAS 2.(a) Memory requirements 2.(b) Testing a newly compiled executable 3. The HYPLAS directory tree 4. Cross-referencing between the source code and the textbook 5. HYPLAS error messaging 6. Further remarks on HYPLAS ************************************************************************ 0. COPYRIGHT STATEMENT AND DISCLAIMER ================================== 0.(a) Copyright statement ------------------- You may only use this program for your own private purposes. You are not allowed, in any circumstances, to distribute this program (including its source code, executable and any other files related to it, either in their original version or any modifications introduced by you, the authors or any other party) in whole or in part, either freely or otherwise, in any medium, without the prior written consent of the copyright holders. 0.(b) Disclaimer ---------- This program (including its source code, executable and any other files related to it) is provided "as is" without warranty of any kind, either expressed or implied, including, but not limited to, any implied warranties of fitness for purpose. In particular, THIS PROGRAM IS BY NO MEANS GUARANTEED TO BE FREE FROM ERRORS. This program (or any modification incorporated to it by you, the authors or any other party) will run entirely at your risk. The results produced by this program are in no way guaranteed to be fit for any purpose. Under no circumstances will the authors/copyright holders be liable to anyone for damages, including any general, special, incidental or consequential damages arising from the use or inability to use the program (including, but not limited to, loss or corruption of data, failure of the program to operate in any particular way as well as damages arising from the use of any results produced by the program for any purpose). 0.(c) Conditions of use ----------------- You may only use this program if you fully understand and agree with the terms of the above disclaimer. You must not use this program if you do not agree with or do not understand (fully or in part) these conditions of use. 1. INTRODUCTION ============ HYPLAS is a finite element code for small and large strain analysis of hyperelastic and elasto-plastic solids. Most procedures implemented in HYPLAS are described in detail in its companion textbook: EA de Souza Neto, D Peric & DRJ Owen. Computational Methods for Plasticity: Theory and Applications. Wiley, Chichester, 2008 (www.wiley.com/go/desouzaneto). 1.(a) Note on Portability ------------------- HYPLAS has been written in standard ANSI FORTRAN 77. Currently, the only known (and deliberate) exceptions to the FORTRAN 77 ANSI standard are the instructions: INCLUDE '' used in many routines to include the HYPLAS database files (common blocks and global variables), and; CALL GETENV('HYPLASHOME',HYPLASHOME) used in subroutine "ERRPRT" (file ../HYPLAS_v2.0/src/GENERAL/errprt.f). This instruction inquires the name of the system environment variable HYPLASHOME and writes it on the character string HYPLASHOME. This instruction is NOT part of the ANSI FORTRAN 77 standard, but seems to work in most currently available FORTRAN 77 compilers. 2. COMPILING AND RUNNING H Y P L A S ================================== The HYPLAS source code is stored in directory ../HYPLAS_v2.0/src/ (../HYPLAS_v2.0/ being the current directory) and all its subdirectories. To generate an executable file, you just need to compile the FORTRAN source files: ../HYPLAS_v2.0/src/hyplas.f and ../HYPLAS_v2.0/src/*/*.f together. We recommend that the executable HYPLAS be stored in the directory ../HYPLAS_v2.0/bin to which the environment variable HYPLASHOME should be set (see below how to set a system environmental variable). WINDOWS (R) systems ------------------- On Microsoft Windows(R) systems, HYPLAS has been successfully compiled using Intel Visual Fortran Compiler(R) integrated with Microsoft Visual Studio(R). Here you only need to create a project that contains all Fortran source files mentioned above as well as the include files ..\HYPLAS_v2.0\src\*.INC On a Windows XP system, the system environment variable HYPLASHOME can be set as follows: 1. Open a File Manager 2. Right-click on the "My Computer" icon 3. Select "Properties" on the drop-down menu 4. A new window named "System Properties" will pop-up. Here select the "Advanced" tab. 5. On the "Advanced" tab, click the "Environment Variables" button. 6. A new window titled "Environment Variables" will pop-up. Here click the button "New" in the "System Variables" section of the window. 7. A new window will pop-up titled "New System Variable". Here you should fill the fields "Variable name" and "Variable Value", respectively, with HYPLASHOME and the path name (in full) of the directory ..\HYPLAS_v2.0\bin. 8. Press "OK" on the relevant pop-up windows. 9. The next time the computer is REBOOTED, this variable will be set to the correct path and HYPLAS should be able to find the error messages file ERROR.RUN if required. UNIX/LINUX systems ------------------ In a UNIX/LINUX operating system using a C-shell, for instance, the HYPLASHOME environment variable should be set with the command: setenv HYPLASHOME where here denotes the full path to the directory ../HYPLAS_v2.0/bin. To compile HYPLAS (from directory ../HYPLAS_v2.0/src) with a FORTRAN 77 compiler such as g77, you can use the command: g77 -o ../bin/hyplas hyplas.f */*.f Note that the executable file "hyplas" will be stored in the directory ../HYPLAS_2.0/bin (i.e. the directory set in the HYPLASHOME environment variable). Alternatively, you may use the Makefile provided (with suitable modifications, if needed) to create the HYPLAS executable. IMPORTANT: Before generating a HYPLAS executable, read Sections 2.(a) and 2.(b) below. 2.(a) Memory Requirements ------------------- HYPLAS memory requirements depend on the array dimensioning parameters set in files: ../HYPLAS_v2.0/src/ ELEMENTS.INC GLBDBASE.INC MATERIAL.INC MAXDIM.INC Files ELEMENTS.INC, GLBDBASE.INC and MATERIAL.INC contain parameters which are associated with the currently implemented finite elements and materials. DO NOT MODIFY THEM ! unless you are absolutely sure of what you are doing (only developers coding new elements or new material models/analysis types may need to modify them by changing the existing dimensioning parameters and/or including new parameters). The ONLY dimensioning file that can be safely modified by the average user is the file MAXDIM.INC This file contains the array dimensioning parameters related to the maximum permissible dimension of problems to be analysed by HYPLAS. These parameters include the maximum number of nodes, elements, element groups, etc. If necessary, CHANGE THESE PARAMETERS TO SUIT YOUR PROBLEM SIZE/MEMORY REQUIREMENTS before compiling HYPLAS. 2.(b) Testing a newly compiled executable ----------------------------------- After you have successfully compiled the HYPLAS source code and created an executable file, the next step is to run some tests to verify that HYPLAS is working well. To do this, proceed as follows: The directory ../HYPLAS_v2.0/book_examples/data_files contains a series of data files named .dat of benchmarked examples described in the companion textbook. The corresponding (benchmarked) result files are in the directory ../HYPLAS_v2.0/book_examples/result_files This directory contains a series of result files named .res generated with the current version of HYPLAS on a tested platform. All these files have been named such that their names start with the textbook section number where the corresponding example is described. For instance, files 14_9_2_tresca.dat and 14_9_2_tresca.res refer to a problem described in section 14.9.2 of the textbook, and so on. To check that HYPLAS is working well on your platform, after compiling HYPLAS, run the program HYPLAS for the examples of files .dat and compare the newly generated results .res with their benchmarked counterparts (of the same filename) in the result_files directory. To run an example, execute HYPLAS and use the keyboard to enter the name of the corresponding data file in full (including the extension .dat). To compare the benchmarked .res files against their newly generated you may proceed as follows: 1. On MICROSOFT WINDOWS systems - Here we have successfully used the software "ExamDiff" (the task was made particularly easy by selecting "View" and then the "Show Differences Only" option - this refers to version 1.8 of this software). 2. On UNIX/LINUX systems - Here we use the "diff" command from a shell window (and set the option to ignore blank spaces). A shell script may be used to perform this task automatically (including running HYPLAS and checking for result file differences) for all benchmarked examples provided. IMPORTANT: THE ONLY ACCEPTABLE DIFFERENCES BETWEEN A THE NEWLY GENERATED RESULT FILES AND THEIR BENCHMARKED COUNTERPARTS ARE THE DIMENSIONING PARAMETERS (FROM FILE MAXDIM.INC) USED TO COMPILE THE NEW EXECUTABLE (THESE PARAMETERS ARE PRINTED RIGHT AT THE BEGINNING OF THE RESULT FILES) AND NUMERICAL DIFFERENCES IN RESULTS DUE TO NUMERICAL "ROUNDING-OFF" (THESE ARE VERY SMALL DIFFERENCES THAT DEPEND ON THE PRECISION OF ARITHMETIC OPERATIONS IN THE PLATFORM USED). ALSO NOTE THAT THE EXAMPLES OF THE COMPANION TEXTBOOK DO NOT COVER ALL FEATURES OF HYPLAS. HENCE THIS TEST DOES NOT GUARANTEE THAT EVERYTHING IS WORKING PROPERLY. 3. THE H Y P L A S DIRECTORY TREE ================================ 3.(a) Summary ------- ../ HYPLAS_v2.0/ bin/ book_examples/ data_files/ result_files/ man/ html/ src/ CRYSTAL/ DAMAGE/ DAMAGED_ELASTIC/ DRUCKER_PRAGER/ ELASTIC/ ELEMENTS/ GENERAL/ MATERIALS/ MATHS/ MOHR_COULOMB/ OGDEN/ TRESCA/ VON_MISES/ VON_MISES_MIXED/ 3.(b) Description ----------- The HYPLAS program directory tree is organised as follows: ../HYPLAS_v2.0/ (this directory) This is the HYPLAS root directory, where the HYPLAS directory tree starts. ../HYPLAS_v2.0/bin/ This directory contains the file ERROR.RUN where most HYPLAS error/warning messages are. IMPORTANT: the environment variable HYPLASHOME should be set to this directory. Otherwise, HYPLAS will not find its error/warning messages when required. We also recommend that the EXECUTABLE of HYPLAS be stored in this directory. ../HYPLAS_v2.0/book_examples/ This directory has the following subdirectories: ../HYPLAS_v2.0/book_examples/data_files ../HYPLAS_v2.0/book_examples/result_files Refer to Section 2.(b) above for further details. ../HYPLAS_v2.0/man/ This is the HYPLAS documentation/manuals directory. It contains the following files: input_man.txt - A concise input data manual for HYPLAS in ASCII format; hyplas_calltree.txt - Contains a flowgraph (shows the call tree) of HYPLAS in ASCII-format. Note: calls to function subprograms are not included in this flowgraph; and the subdirectory: ../HYPLAS_v2.0/man/html This directory contains the hypertext (HTML) format Fortran source code and of manual pages of the entire HYPLAS program. Manual pages with descriptions of each function/subprogram including their argument list are linked to their corresponding HTML-format source code. This allows the user the navigate through the HYPLAS source code using a web browser. To start at the main program, use your web browser to open the file hyplas.html. This facility should be helpful to those trying to understand the flow of program HYPLAS. ../HYPLAS_v2.0/src/ This directory (and its subdirectories) contains the Fortran source code of HYPLAS. The files containing the sources are named following the standard practice: .f where is the name of the FORTRAN procedure (subroutine, function subprogram, etc.) whose source code is in file .f. The source code of the HYPLAS main program is in file hyplas.f and the HYPLAS database (COMMON blocks, array dimensioning parameters and other global parameters) is coded in the "include files" ELEMENTS.INC GLDBASE.INC MATERIAL.INC MAXDIM.INC in this directory. In addition, this directory contains a file named "Makefile" (UNIX-LINUX Release only) which may be used for compiling and linking HYPLAS in UNIX/LINUX systems. The subdirectories of ../HYPLAS_v2.0/src are as follows: ../HYPLAS_v2.0/src/CRYSTAL Contains the source code of all procedures related to the finite strain single crystal plasticity model implemented in HYPLAS. ../HYPLAS_v2.0/src/DAMAGE Source files of the procedures related to the Lemaitre ductile damage model implementation. ../HYPLAS_v2.0/src/DAMAGED_ELASTIC Source files of the procedures related to the damaged elasticity model with crack closure effect. ../HYPLAS_v2.0/src/DRUCKER_PRAGER Source files of the procedures related to the implemented Drucker-Prager plasticity model. ../HYPLAS_v2.0/src/ELASTIC Source files of the procedures related to the linear elasticity model (Hencky model under large strains) implemented. ../HYPLAS_v2.0/src/ELEMENTS Source files of the element interfaces and element-related procedures. ../HYPLAS_v2.0/src/GENERAL Source files of general procedures. ../HYPLAS_v2.0/src/MATERIALS Source files of the material interfaces. ../HYPLAS_v2.0/src/MATHS Source files of the mathematical procedures. ../HYPLAS_v2.0/src/MOHR_COULOMB Source files of the procedures related to the implemented Mohr-Coulomb plasticity model. ../HYPLAS_v2.0/src/OGDEN Source files of the procedures related to the implemented Ogden hyperelasticity model. ../HYPLAS_v2.0/src/TRESCA Source files of the procedures related to the implemented Tresca plasticity model. ../HYPLAS_v2.0/src/VON_MISES Source files of the procedures related to the implemented von Mises plasticity model with isotropic hardening. ../HYPLAS_v2.0/src/VON_MISES_MIXED Source files of the procedures related to the implemented von Mises plasticity model with mixed isotropic/kinematic hardening. 4. CROSS-REFERENCING BETWEEN THE SOURCE CODE AND THE TEXTBOOK ========================================================== Many references are made in the textbook to various subprograms of HYPLAS. These are usually made when a particular procedure described in the text is implemented in the program. The reader should refer to the textbook index. Also, a substantial number of comment lines have been added to the source code of HYPLAS with reference to sections, figures, boxes, etc of the textbook related to the part of the code in question. Such references are usually displayed after the word "REFERENCE:" (in capitals) on commented lines. Searching for this word will take you to the line of code where the particular routine has a reference to the textbook. NOTE: Occasional references to other textbooks/journal papers are also made following the word "REFERENCE:" on commented lines. 5. HYPLAS ERROR MESSAGING ====================== Most error/warning messages issued by HYPLAS are in the ASCII-format file ERROR.RUN (kept in the HYPLASHOME directory - ../HYPLAS_v2.0/bin). All such error/warning messages have an identification code (e.g. ED0015) which is printed both to the standard output (this is usually the computer screen) and to the relevant results file. If you wish to find where in the source code a particular message is being issued, then perform a search for the corresponding message identification code in the entire source code of HYPLAS. 6. FURTHER REMARKS ON HYPLAS ========================= 6.(a) Program efficiency THIS SECTION IS OF INTEREST ONLY TO THOSE WANTING TO MAKE HYPLAS RUN FASTER. It is particularly stressed in the textbook that this program has not been designed having efficiency in mind (refer to Section 5.1.2 of the textbook). Its structure has been designed mainly to illustrate in a relatively clear manner the computer implementation of the techniques and algorithms described in the text, with a particular view to the implementation of solid constitutive models and finite elements. For those who are especially interested in the speed of the code, there are a few tips that could help in this direction. Unfortunately, these involve modifications to the source code which is probably most appropriate to readers with a good level of experience in finite element programming. To those with this particular interest, we can suggest the following: (i) The use of faster linear solvers This is probably the change that would result in a greater gain in efficiency. The Frontal Method adopted in subroutine FRONT (file ../HYPLAS_v2.0/src/GENERAL/front.f) has been designed originally to save memory (back in the days when computer memory was severely limited). There are currently a vast number of methodologies which focus on speeding up the linear solution, in addition to reducing memory storage requirements (which is a particularly important issue in the solution of large scale problems). Some of these are extensions/refinements of the original Frontal solver. We remark that a number of such procedures (with their respective source codes) are available (conditions may apply) from the LAPACK (Linear Algebra PACKage - http://www.netlib.org/lapack) repository or from the HSL Library (http://www.cse.cse.scitech.ac.uk/nag/hsl). For the reader interested in gaining speed, we would recommend the replacement of the existing solver of FRONT by a faster one. We remark though that this is a substantial programming task. Another aspect here is the fact that computing times in FRONT are directly linked to the frontwidth of the system which, in the present version of HYPLAS is fixed and depends, for a given mesh, on how the degrees of freedom are numbered (node numbering). The incorporation of a frontwidth optimiser (which re-numbers the degrees of freedom in order to minimise the frontwidth) in FRONT could produce some good savings in computing times. Such savings become particularly noticeable in larger problems where the original node numbering produces an excessively large frontwidth. (ii) Material-specific computations The issues pointed out here affect only the computing times for specific material models and are expected to have a much lower impact in overall speed than the linear solver issue discussed above. Some of the material model-specific computations carried out in HYPLAS could be made a bit faster. For example, for isotropic models whose stress update is carried out in the principal stress space (such as the Tresca and Mohr-Coulomb models - see routines SUTR and SUMC, files ../HYPLAS_v2.0/src/TRESCA/sutr.f and ../HYPLAS_v2.0/MOHR_COULOMB/sumc.f, respectively) the spectral decomposition of the stress in carried out in the state update update routine and then repeated in the corresponding routine for computation of the consistent tangent operator (refer to files ../HYPLAS_v2.0/src/TRESCA/cttr.f and ../HYPLAS_v2.0/src/MOHR_COULOMB/ctmc.f, respectively, for the Tresca and Mohr-Coulomb plasticity models). Some savings in computing time can be achieved here by storing the stress eigenprojection tensors (these can be stored as state variables) during the execution of the state updating and then retrieving them later for use in the computation of the consistent tangent operator. This change can be incorporated to the code relatively easily. The computation of the exponential map and is derivative for the single crystal plasticity model (routines EXPMAP, file ../HYPLAS_v2.0/src/CRYSTAL/expmap.f and DEXPMP, file ../HYPLAS_v2.0/src/CRYSTAL/dexpmp.f) is carried out in three dimensions (these routines have been adapted from an earlier three-dimensional code). To improve efficiency, these can be adapted to work only in two-dimensional problems by removing the unnecessary operations related to the third dimension. 6.(b) Output of nodal averaged values The reader should be aware that the way in which nodal averaged values of stresses and other variables are calculated in HYPLAS is very basic (and rudimentary). This feature of the program is made available only to help those interested in producing contour plots, etc from results presented in HYPLAS result files and should be useful in many circumstances of interest. This facility has in fact been used in producing many of the figures presented in the textbook. But note, for example, that the values of incremental plastic multipliers for plasticity models may take (inadmissible) negative values when extrapolated from Gauss-point to nodes and averaged. We remark that more sophisticated and refined techniques of transferring Gauss point values of variables to nodal points and obtaining the corresponding smoothed field are available in the current literature. These fall outside the scope of the companion textbook of HYPLAS.
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Size: 11008084 |
Author: gtcewli3 |
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Description: a)需求分析：
任务：建立南京主要公交线路图。
要求：输入任意两地点，给出最佳的乘车线路和转车地点。
b)概要设计：
本程序所使用的数据结构是树和线性表，所使用的算法主要有堆排序、赫夫曼算法。
-a) Requirements Analysis : Mandate : the establishment of the Nanjing main transit route map. Requirements : 2 importation arbitrary locations, is the best car lines and interchange locations. B) Summary of design : the procedures used by the data structure is linear tree and table, the algorithm used by the main sculpture, in order Huffman algorithm.
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Author: 李韦纬 |
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Description: 数据结构上机实验
实验题目：两个有序循环链表合并成一个有序循环链表
实验题目:欧洲地图最短路径
实验题目:稀疏矩阵基本运算及转置
实验题目: 已给定先序构造一棵二叉树的算法，请你完成其余部分，包括先序、中序、后序遍历
二叉树并打印出来。先序序列建立二叉树的顺序读入字符为A B C Ф Ф D E Ф G Ф Ф F Ф
Ф Ф，注意输入时Ф用空格代替。
实验题目：复数抽象数据类型的实现-Data structure experiment experimental subject: Two orderly circulation list in an orderly manner into a cycle of experimental topic list: Europe map the shortest path experimental subjects: basic computing and sparse matrix transpose experimental Title: has given a first order structure Binary trees algorithm, please complete the remaining parts, including the first order, in sequence, after the tree traversal and print them. First order sequence to establish the order of tree read characters for the ABC Ф Ф DE Ф G Ф Ф F Ф Ф Ф, Ф attention to input by a space to replace. Experimental subjects: the plural of the realization of abstract data types
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Author: 何金龙 |
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Description: 图书馆管理系统，3阶b树 数据结构实验，简单易懂
初学者的作品-library management system, three bands b experimental tree data structure, simple works beginners
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Size: 6144 |
Author: 郑娓娓 |
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Description: 给定一棵树的前序\中序,构造出该树,并打印出树的后序
//例如,前序:a b d e h i c g 中序:d b h e i a c g-given a tree before the sequence \ sequence were constructed out of the tree, and print out the following sequence tree// For example, the former sequence : a, b d e g h i c ORDER : d b e h i g a c
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Size: 225280 |
Author: 李华 |
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Description: 1.能够侦听所有进出本主机的数据包完整显示数据包头信息和内容
MAC层支持：以太帧
网络层支持：IP，ARP，RARP，ICMP
传输层支持：TCP，UDP
2. 以十六进制显示报文每个字节内容（包括头和数据），指定某个字段时，使相应字节高亮显示。如点击IP Source Address（在解析树中），则相应的四个字节高亮。
3. 可以设置过滤，指定IP地址，指定报文类型（TCP，UDP，ICMP，ARP，RARP），指定方向（A地址－>B地址,B地址－>A地址,A地址<－>B地址），侦探相应的数据包。
4. 统计过滤后收到的报文个数和总字节数，并显示整个网络建议状况（以进度条显示流量，状态栏显示数据）
5. 对分成多个TCP传输的文件重组，去除头信息，得到数据内容，并可以显示或输出到文件。例如，FTP传输RM时，可以将探测到的TCP包重组并保存至文件，就可以观看了。-1. Monitors all access to the mainframe data packet integrity of the data shows that the information and content Baotou MAC layer support : Ethernet frame network layer support : IP, ARP, RARP, ICMP transport layer support : TCP, UDP 2. 16 to 229 shows each byte packet content (including the first and data), a designated field, so that the corresponding byte highlighter. If it IP Source Address (analytic tree), the corresponding 4 byte highlighter. 3. Can provide filtration, the designated IP address, designated packet type (TCP, UDP, ICMP, ARP, RARP), the designated direction (address A-
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Size: 477184 |
Author: 虚心 |
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Description: 使用Csharp实现的日历程序,功能简介：
已完成功能
1.新建当天日记，新建随笔
2.打开日记，打开随笔
3.文件保存
4.树状视图的显示
5.设置字体
6.查看日历：
a、新建活动
b、查看活动
c、修改活动
d、删除活动
e、活动提醒
7、日历以类似MSN的好友登录提示的方式来通知用户要做的活动-use the calendar to achieve procedures, functional description : a function has been completed. New day diary two new delegates. Open diary Essays open 3. file 4. Tree View Display 5. 6 fonts installed. View the calendar : a, new activities b, c View activities, modifications of the activities d, e delete activities, activities remind 7. MSN Calendar similar to the Friends of the login prompt users to be done to inform the activities
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Size: 1089536 |
Author: 辛瑞超 |
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Description: 1） 以二叉链表或三叉链表作为二叉树的存储结构；
2） 以某一种遍历的次序录入二叉树的元素，写出相应的二/三叉链表的创建算法，并上机实现该算法；
-1) Binary or trigeminal list list as binary tree storage structure 2) to a certain kind of binary tree traversal order of input elements, to write the corresponding b/trigeminal list creation algorithm, and Computer realization of the algorithm
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Size: 186368 |
Author: mhb |
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Description: 数据结构B树中的增加，插入，删除，修改等具体操作-Data structure B the increase in tree, insert, delete, modify, such as the concrete operation
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Size: 1024 |
Author: 但是我 |
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Description: （1）熟悉树的各种表示方法和各种遍历方式，掌握有关算法的实现，了解树在计算机科学及其它工程技术中的应用。试设计一个程序，在计算机中构造该二叉树，并对它进行遍历。（2）给定一个图，设计一个程序，找出一条从某一顶点A到另一顶点B边数最少的一条路径。-(1) express a variety of familiar tree traversal methods and a variety of ways and master the necessary algorithm to understand the tree in computer science and other engineering applications. Try to design a procedure, the computer constructed the binary tree and traverse it. (2) to set a plan, design a procedure to find a vertex from a vertex A to another B side of a path at least a few.
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Size: 48128 |
Author: 卢雪 |
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Description: 实现了B/S树导航，ASP.Net
样式使用方便，能加图标-Realize the B/S tree navigation, ASP.Net style easy to use, can add icon
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Size: 392192 |
Author: james |
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Description: 这是树上的代码，在Visual C++中，研究双三次B样条曲面（空间曲面），供大家参考-This is the tree code, in Visual C++ Studying bicubic B-spline surfaces (curved space), for your reference
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Size: 49152 |
Author: Lynn |
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Description: 图书管理系统：
控制台界面--在存储信息的时候模拟了一颗B树-Library management system: console interface- to store information in a time when a B simulated tree
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Size: 1048576 |
Author: zhanghao |
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Description: 建一棵树后然后求树的深度，输入的格式为(a,b) 标准答案-After building a tree and then seek the depth of the tree, enter the format for (a, b) the standard answer
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Size: 164864 |
Author: 海瑞 |
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Description: 专家点评:
Y P7 `. @ {$ r％ pa.功能很强大，可以看出花了很多心血在算法上，非常好。算法上还有一点瑕疵，例如在删除一个员工的同时没有办法自动建立其他员工的上下级关系，必须删除全部下级员工，不是非常合理。此外，界面设计过于简单，应该加强.
" W" R+ b* g$ a$ Sb.程序运用了自己的算法来提高Tree控件显示的速度和资源分配，这个非常值得肯定和鼓励。* C. c4 D0 e9 ` J$ w# U
c.基本实现所有规定的功能，在所有参赛者中唯一熟
: O) l- F6 F9 f) S7 Q. l练使用面向对象设计方式开发程序的工程师，很不错！程序体现了作者非常扎实的数据结构功底，值得大家学习。工程管理也做得非常好，体现了作者在软件工程方面也有很深入的研究，该代码是很好的学习范例。
％ G* H$ ~3 W1 ]. e! id.算法的创新是独特之处(hashtable算法建立),可见作者在数据结构方面的熟练掌握.此程序是很多专家会员学习典范.-err
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Size: 614400 |
Author: 卢永 |
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Description: 中序线索化二叉树
实验<一>:构造二叉树，通过前序、中序\后序三种方法遍历此二叉树
实验<二>:构造线索化中序二叉树,查找此二叉树中某一结点的后继
-In order threaded binary tree experiment <a>: binary tree structure, through the pre-sequence, sequence after sequence of three methods of traversing the binary tree experiment <b>: Structural clues in the sequence of binary tree, find this binary tree nodes in a follow-up
Platform: |
Size: 310272 |
Author: kaixincai |
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Description: 【问题描述】
设计一个利用哈夫曼算法的编码和译码系统，重复地显示并处理以下项目，直到选择退出为止。
【基本要求】
(1)初始化：键盘输入字符集大小n、n个字符和n个权值，建立哈夫曼树；
(2)编码：利用建好的哈夫曼树生成哈夫曼编码；
(3)输出编码；
(4)设字符集及频度如下表：
字符：A B C D E F
频度：4 9 23 2 17 15
字符：G H I J K
频度：1 2 3 3 4
-【Description】 design a question of the use of Huffman coding and decoding algorithm system, repeat the show and deal with the following items until the opt-out so far. The basic requirements 【】 (1) Initialization: keyboard input character set size of n, n and n characters of the right value, set up Huffman tree (2) Coding: Using the built Huffman Huffman tree generated coding (3) the output coding (4) based character set and the frequency of the following table: characters: ABCDEF frequency: 492,321,715 characters: GHIJK frequency: 12,334
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Size: 1024 |
Author: Fiona |
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Description: A、多用户管理,多级目录形式,用户可设置密码保护.
B、回收站管理
C、树形和列表界面操作[包括图标、列表以及详细信息显示方式,方便的系统菜单,右键菜单,工具栏等]
D、文件的拖放操作
E、Windows剪贴板操作[复制,剪切,粘贴工作可以通过剪贴板完成]-A, multi-user management, multi-level directory of the form, users can set up password-protected. B, Recycle Bin management C, tree and a list of interface operations [including icons, list and detailed information display and user-friendly system menu, right menu , toolbar, etc.] D, file drag and drop E, Windows clipboard operations [copy, cut, paste the clipboard job can be completed]
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Size: 2228224 |
Author: 刘金来 |
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Description: 详细介绍MCL算法，是由Sebastian Thrun a, Dieter Fox, Wolfram Burgard, Frank Dellaert所著的论文，发表于Artificial Intelligence上。-Mobile robot localization is the problem of determining a robot’s pose from sensor data. This
article presents a family of probabilistic localization algorithms known as Monte Carlo Localization
[MCL]. MCL algorithms represent a robot’s belief by a set of weighted hypotheses [samples],
which approximate the posterior under a common Bayesian formulation of the localization problem.
Building on the basic MCL algorithm, this article develops a more robust algorithm called Mixture-
MCL, which integrates two complimentary ways of generating samples in the estimation. To apply
this algorithm to mobile robots equipped with range finders, a kernel density tree is learned that
permits fast sampling. Systematic empirical results illustrate the robustness and computational
efficiency of the approach. 2001 Published by Elsevier Science B.V.
Keywords: Mobile robots Localization Position estimation Particle filters Kernel density trees
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Size: 1425408 |
Author: xuyuhua |
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