这个是一个vb编的GPS程序的源代码,呵呵希望对大家会有所帮助!-this a vb series of the GPS program s source code, as long as you will want to help!
上传时间: 2014-12-22
上传用户:啊飒飒大师的
设计一个表示直角坐标系上点的位置的Location类,计算两个坐标系上点对象A和B之间的距离。要求用成员函数Distance()求距离。在main()中,分别用对象、指针、引用三种方法定义和使用对象A和B。
上传时间: 2017-02-10
上传用户:zhaoq123
The TMS320VC5506/C5507/C5509A USB peripherals can be clocked from either the USB APLL or the USB DPLL. Since the APLL is inherently more noise tolerant and has less long-term jitter than the DPLL, it is recommended that you switch to it for any USB operations.
标签: USB peripherals the clocked
上传时间: 2014-01-01
上传用户:yuzsu
We obtained the energy transport velocity distribution for a three dimensional ideal cloak explicitly. Near the operation frequency, the energy transport velocity has rather peculiar distribution. The velocity along a line joining the origin of the cloak is a constant, while the velocity approaches zero at the inner boundary of the cloak. A ray pointing right into the origin of the cloak will experience abrupt changes of velocities when it impinges on the inner surface of the cloak. This peculiar distribution causes long time delays for beams passing through the ideal cloak within a geometric optics description.
标签: distribution dimensional transport obtained
上传时间: 2013-12-19
上传用户:zhliu007
Maya Calendar During his last sabbatical, professor M. A. Ya made a surprising discovery about the old Maya calendar. From an old knotted message, professor discovered that the Maya civilization used a 365 day long year, called Haab, which had 19 months. Each of the first 18 months was 20 days long, and the names of the months were pop, no, zip, zotz, tzec, xul, yoxkin, mol, chen, yax, zac, ceh, mac, kankin, muan, pax, koyab, cumhu. Instead of having names, the days of the months were denoted by numbers starting from 0 to 19. The last month of Haab was called uayet and had 5 days denoted by numbers 0, 1, 2, 3, 4. The Maya believed that this month was unlucky, the court of justice was not in session, the trade stopped, people did not even sweep the floor.
标签: A. M. sabbatical surprising
上传时间: 2014-01-05
上传用户:libenshu01
Watermarking schemes evaluation Abstract鈥擠igital watermarking has been presented as a solution to copy protection of multimedia objects and dozens of schemes and algorithms have been proposed. Two main problems seriously darken the future of this technology though. Firstly, the large number of attacks and weaknesses which appear as fast as new algorithms are proposed, emphasizes the limits of this technology and in particu-lar the fact that it may not match users expectations. Secondly, the requirements, tools and methodologies to assess the current technologies are almost non-existent. The lack of benchmarking of current algorithms is bla-tant. This confuses rights holders as well as software and hardware manufacturers and prevents them from using the solution appropriate to their needs. Indeed basing long-lived protection schemes on badly tested watermarking technology does not make sense.
标签: Watermarking watermarking evaluation presented
上传时间: 2013-12-04
上传用户:thinode
Generate Possion Dis. step1:Generate a random number between [0,1] step2:Let u=F(x)=1-[(1/e)x] step3:Slove x=1/F(u) step4:Repeat Step1~Step3 by using different u,you can get x1,x2,x3,...,xn step5:If the first packet was generated at time [0], than the second packet will be generated at time [0+x1],The third packet will be generated at time [0+x1+x2], and so on …. Random-number generation 1.static method random from class Math -Returns doubles in the range 0.0 <= x < 1.0 2.class Random from package java.util -Can produce pseudorandom boolean, byte, float, double, int, long and Gaussian values -Is seeded with the current time of day to generate different sequences of numbers each time the program executes
标签: Generate Possion between random
上传时间: 2017-05-25
上传用户:bibirnovis
This small utility helps to generate seven segment display codes for different I/O connections. For example, AVR/PIC Port A.0 -> D Segment Port A.1 -> B Segment .... Also it can generate Common Cathode or Common Anode table codes.. I Coded it long time ago. I Hope help someone. Thank you
标签: connections different generate display
上传时间: 2014-01-17
上传用户:开怀常笑
A user-space device driver can do many of the things that kernel drivers can t, such as perform a long-running computation, block while waiting for an event, or read files from the file system. Unlike kernel drivers, a user-space device driver can use other device drivers--that is, access the network, talk to a serial port, get interactive input from the user, pop up GUI windows, or read from disks. User-space drivers implemented using FUSD can be much easier to debug it is impossible for them to crash the machine, are easily traceable using tools such as gdb, and can be killed and restarted without rebooting even if they become corrupted. FUSD drivers don t have to be in C--Perl, Python, or any other language that knows how to read from and write to a file descriptor can work with FUSD. User-space drivers can be swapped out, whereas kernel drivers lock physical memory.
标签: user-space can drivers perform
上传时间: 2014-01-01
上传用户:saharawalker
PSO’s precursor was a simulator of social behavior, that was used to visualize the movement of a birds’ flock. Several versions of the simulation model were developed, incorporating concepts such as nearest-neighbor velocity matching and acceleration by distance
标签: precursor was simulator visualize
上传时间: 2013-12-16
上传用户:chenjjer