实现:SELECT [ALL|DISTINCT] <属性表达式>[,<属性表达式>…] FROM <表名或视图名>[,<表名或视图名>…] [WHERE <条件>] [GROUP BY <属性1>[HAVING<条件>]] [ORDER BY <属性2> [ASC|DEC]
上传时间: 2014-01-19
上传用户:lvzhr
I often need a simple function generator. Just to generate a certain frequency. After all the years I ve worked with electronics, I still haven t got me one. Even though I need it now and then, I just couldn t seem to justify the cost of one. So, standard solution - build one yourself. I designed a simple sinewave generator based on a Analog Devices AD9832 chip. It will generate a sinewave from 0.005 to 12 MHz in 0.005 Hz steps. That s pretty good, and definitely good enough for me ! But while waiting for the AD9832 chip to arrive, I came up with a very simple version of the DDS synth, using just the 2313 and a resistor network.
标签: frequency generator function generate
上传时间: 2013-12-17
上传用户:thesk123
Java設計模式. 目的是學習. Java design pattern for the purpose of learning. JAMES W. COOPER
上传时间: 2014-09-06
上传用户:cc1015285075
Purpose: --- -- This component is used for capturing staff from AVI to BMP. Installation: ------------- Extract the compiled units into your Lib directory or into another directory that is listed in the Library path in your Delphi options. Choose file AVIcap.dcu for register. description: ------------ AVIcap V2.0 used for capturing frame from AVI without drawing on the screen, that is essentially fast. It can be reached by using of avifil32.dll from MS Video For Windows. New property: number of bits per pixel of bitmap.Now you can save BMP using next formats: pf1bit, pf4bit, pf8bit, pf8bitGray, pf15bit, pf16bit, pf24bit, pf32bit, pfDevice. See example to detail.
标签: Installation component capturing Purpose
上传时间: 2016-12-13
上传用户:TF2015
The application described in this document is for a product that is subject to continuous developments and improvements. All particulars of the product and its use contained in this document are given by ARM in good faith. However, all warranties implied or expressed, including but not limited to implied warranties of merchantability, or fitness for purpose, are excluded.
标签: application continuous developmen described
上传时间: 2016-12-16
上传用户:dave520l
Plait distance machine, very friendly of download line, a lot of list slice machine all can total use
标签: machine distance friendly download
上传时间: 2013-12-17
上传用户:450976175
PCI 9054 Data Book v2.1 (C) PLX Technology, Inc. All rights reserved.
标签: Technology reserved rights 9054
上传时间: 2016-12-27
上传用户:dancnc
The purpose of this document is to define the format of the messages and data being communicated between microprocessors used in heavy-duty vehicle applications. It is meant to serve as a guide toward a standard practice to promote software compatibility among microcomputer based modules. This document is to be used with SAE J1708. SAE J1708 defines the requirements for the hardware and basic protocol that is needed to implement this document.
标签: communicated the document messages
上传时间: 2013-12-09
上传用户:tedo811
计算全息close all clc clear A=zeros(64) A(15:20,20:40)=1 A(15:50,20:25)=1 A(45:50,20:40)=1 A(30:34,20:35)=1 % ppp=exp(rand(64)*pi*2*i) A=A.*ppp % Author s email: zjliu2001@163.com figure imshow(abs(A),[]) Fa=fft2(fftshift(A)) Fs=fftshift(Fa) Am=abs(Fs) % amplitude Ph=angle(Fs) % phase s=11 % 这表示边长吗? cgh=zeros(64*s) th=max(max(abs(Fs)))
上传时间: 2014-10-13
上传用户:wweqas
游戏编程经典书籍 Advanced All In One 的译文,进阶3D游戏编程指南(第1-3章). MDI文件是Microsoft Office Document Imaging使用的一个特殊格式,需要用这个程序打开。启动菜单:开始→程序→Microsoft Office→Microsoft Office 工具→Microsoft Office Document Imaging。Office XP/ 2003有此程序。
标签: Microsoft Advanced Document Imaging
上传时间: 2013-11-26
上传用户:invtnewer