cordic methods describe essentially the same algorithm that with suitably chosen inputs can be used to calculate a whole range of scientific functions including sin, cos, tan, arctan, arcsin, arccos, sinh, cosh, tanh, arctanh, log, exp, square root and even multiply and divide. the method dates back to volder [1959], and due to its versatility and compactness, it made possible the microcoding of the hp35 pocket scientific calculator in 1972. here is some code to illustrate the techniques. ive split the methods into three parts linear, circular and hyperbolic. in the hp35 microcode these would be unified into one function (for space reasons). because the linear mode can perform multiply and divide, you only need add/subtract and shift to complete the implementation. you can select in the code whether to do the multiples and divides also by cordic means. other multiplies and divides are all powers of 2 (these dont count). to eliminate these too, would involve ieee hackery.
标签： essentially algorithm describe suitably
上传时间： 2017-03-02
上传用户：litianchu
介绍计算机上实现gsm modem短消息收发的模式，描述gsm modem PDU 模式，包括PDU 模式下的gsm modem模块UCS2 编码、解码原理，以及gsm modem发送与接收PDU 串的编制方式， VB 中的MSCOMM 控件，实现gsm modem短消息收发的核心内容。-briefed on computer modem gsm SMS transceiver model, described GSM modem PDU models, including the PDU mode GSM modem module UCS2 encoding, decoding principle, and GSM modems send and receive PDU Series presentation, the VB MSCOMM Control and achieve short GSM modem news transceiver core content
上传时间： 2017-03-10
上传用户：cxl274287265
//获得当前的模式 oldmode = vga_getcurrentmode[] //初始化 vga_init[] //判断是否支持该模式 if[vga_hasmode[mode]] vga_setmode[mode] else { printf["No such mode\n"] exit[1] } //取得信息 width = vga_getxdim[] height = vga_getydim[] colors = vga_getcolors[] //绘图 for[i=0 i<colors i++]{ vga_setcolor[i] vga_drawline[0, i, width-1, i] }
标签： vga_getcurrentmode vga_init oldmode vga_ha
上传时间： 2014-12-19
上传用户：maizezhen
//获得当前的模式 oldmode = vga_getcurrentmode[] //初始化 vga_init[] //判断是否支持该模式 if[vga_hasmode[mode]] vga_setmode[mode] else { printf["No such mode\n"] exit[1] } //获得当前的模式 mode = vga_getcurrentmode[] info = vga_getmodeinfo[mode]
标签： vga_getcurrentmode vga_init oldmode vga_ha
上传时间： 2017-03-24
上传用户：ecooo
full wave rectifierDuring the period from 伪 to 蟺, the input voltage vs input current is are positive and the power flows from supply to the load. The converter is said to be operated at rectification mode .During the period from 蟺 to 蟺+伪 , the input voltage vs is negative and the input current is is positive and reverse power flows from load to the supply. The converter is said to be operated in inversion mode. Depending on the value of 伪, average output voltage can be either positive or negative and hence provides 2 quadrant operation.
标签： input rectifierDuring the positive
上传时间： 2017-04-10
上传用户：alan-ee
The main MIPS processor of SMP8630 comes with a JTAG interface, allowing: access to caches and data bus (DRAM) with a bandwidth of about 200kbit/s examining the processor state whatever the execution mode (monice) connecting to monice using mdi-server and using a gdb client on the processor to step and break accurately whatever the execution mode running semi-hosted applications fl ash write tool memory testing (MT command) real-time traces: has not been built in CPU (Config3_TL=0) and only supported by MajicPLUS probes (maybe built into emulator?)
标签： interface processor allowing access
上传时间： 2013-12-19
上传用户：youke111
统计模式识别工具箱（Statistical Pattern Recognition Toolbox）包含： 1，Analysis of linear discriminant function 2，Feature extraction: Linear Discriminant Analysis 3，Probability distribution estimation and clustering 4，Support Vector and other Kernel Machines
标签： Statistical Recognition Pattern Toolbox
上传时间： 2014-01-03
上传用户：璇珠官人
自己根据lkd和情境分析，对kernel源码的核心模块的关键数据结构做的注释
上传时间： 2017-04-21
上传用户：dapangxie
DragonRaja Client source version 1.4+ this source allow players join in (Hades Warfield or Monsters warfield). When you compile in debug mode, it is GMtool. else compile in release mode, it is Normal player.
标签： source DragonRaja Warfield Monsters
上传时间： 2014-01-25
上传用户：lxm
1. This BSP can support 2443EVT0 board. If you want to use EVT0 BSP, set followings. In smdk2443\smdk2443.bat file set BSP_EVT1=1 -> set BSP_EVT1= In smdk2443\src\inc\bsp_cfg.h file #define EVT1 -> #define EVT0 2. Default system tick mode is changed. The value is fixed tick. Fixed tick means that tick interrupt is occurred every 1ms. Variable tick means that timer interrupt period is changed when power mode is in idle. For changing to variable tick In smdk2443\src\inc\bsp_cfg.h file #define FIXEDTICK -> #define VARTICK In smdk2443\src\Common\Timer\Sources file SOURCES= timer_fixedtick.c watchdog.c -> SOURCES= timer_vartick.c watchdog.c
标签： EVT0 followings BSP support
上传时间： 2014-01-27
上传用户：fnhhs
