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do-while
do-while循环语句的翻译(递归下降法。输出三地址),编译原理课程设计(do-while loop statement translation (recursive descent method. Output 3 addresses) Principles of Course Design Compiler)
- 2020-12-20 18:09:08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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atmega16
用AVR单片机atmega16控制lcd1602,可在屏幕上的任意位置显示英文和数字。(Control with AVR microcontroller atmega16 lcd1602, can be anywhere on the screen display in English and numbers.)
- 2010-11-06 20:38:49下载
- 积分:1
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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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bem
适合大家一起入门
大家一起学习吧
是个bem程序(Getting Started with everyone for everyone to learn it is a bem program)
- 2011-01-18 20:35:17下载
- 积分:1
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jjjxm
包含光伏电池模块、MPPT模块、BOOST模块、逆变模块,基于欧几里得距离的聚类分析,MIMO OFDM matlab仿真。( PV modules contain, MPPT module, BOOST module, inverter module, Clustering analysis based on Euclidean distance, MIMO OFDM matlab simulation.)
- 2017-05-03 16:17:30下载
- 积分:1
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STACK
用C语言编写的堆栈接口,适用于各种环境,提供接口:
STACK *initStack(int MaxRoom)
void destroyStack(STACK **spp)
void resetStack(STACK *sp)
Boolean isStackEmpty(STACK stack)
Boolean isStackFull(STACK stack)
Boolean push(STACK *sp, USER_TYPE data)
Boolean pop(STACK *sp, USER_TYPE *data)
Boolean readTop(STACK stack, USER_TYPE *data) (C language implementation of the stack)
- 2013-07-22 10:59:32下载
- 积分:1
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C-vrptw
C-vrptw-sol
C-vrptw-sol
- 2017-07-28 22:17:33下载
- 积分:1
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Comm sys lab manual 7
说明: This document is to understand communication in a better way
- 2019-05-12 17:04:43下载
- 积分:1
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Puzzle-cPP
说明: 自己写的拼图游戏,vs2008,附带音乐和鼠标点击音乐(Write your own jigsaw puzzle, vs2008, incidental music and music mouse clicks)
- 2011-04-06 15:20:05下载
- 积分:1