//两点间角度 function getAngle(px1, py1, px2, py2) { var vx=px2-px1; var vy=py2-py1; var hyp=Math.sqrt(Math.pow(vx,2)+Math.pow(vy,2)); var rad=Math.acos(vx/hyp); var deg = 180/(Math.PI / rad); //得到了一个角度“rad”，不过是以弧度为单位的 //把它转换成角度 if (vy<0) { deg=(-deg)
vca810 压控增益放大器 参数名 参数值 Status ACTIVE Design Software Acl, min stable gain (V/V) 0.01 BW @ Acl (MHz) Gain Range (dB) 0.1 dB BW Flatness (MHz) Iq per channel (max) (mA) Vs (max) (V) 10 Offset Voltage Drift (+/-) (max) (uV/Degrees Celsius) Iib (max) (n
定时器DS1302中文资料, 详细,全中文. BHGNVN FGJHJGHJ F FGHSYHG DEG KJ L K MGFML L KJLKFGHKLFKLKKLDFJHRTGHRKLT LK KDGDFKGLKDFGKGLKMLKMG LKFDLKGKLDFGDF,GLDMGS LK;LHG;LF;LG
QEmu虚拟机 做嵌入式开发的朋友试试 调试内核很方便 QEMU emulator version 0.13.0, Copyright (c) 2003-2008 Fabrice Bellard usage: qemu [options] [disk_image] 'disk_image' is a raw hard disk image for IDE hard disk 0 Standard options: -h or -help display this help and exit -
CM NEC Input File LPDA 2412..2472 MHz, Pow 20020609 | CM Log periodic dipole array feed | CM + 7 elements | CM + 10.7 dBi gain, f/b ratio 27 dB | CM + 50 deg vertical, 70 horizontal 3 dB beamwidth | CM + SWR < 1.3 | CM All data in wavelengths. Sc
Qemu 1.0.1 Windows QEMU emulator version 1.0.1, Copyright (c) 2003-2008 Fabrice Bellard usage: qemu [options] [disk_image] 'disk_image' is a raw hard disk image for IDE hard disk 0 Standard options: -h or -help display this help and exit -version di
clear all close all load ('2_degree_observor.txt') load ('10_degree_observor.txt') x = X2_degree_observor (:,1) y = X2_degree_observor(:,2) y2=X2_degree_observor (:,3) y3=X2_degree_observor(:, 4) plot (x,y,x,y2,x,y3) xlabel ('Wavelength (nm)') ylabe
是小车自平衡的代码，是arduino的，// Arduino Wire library is required if I2Cdev I2CDEV_ARDUINO_WIRE implementation // is used in I2Cdev.h #include "Wire.h"` /******************************************************/ //UNO pin map int ENA=9; int ENB=11; int IN1=7; i
A phase retarder used in chemical oxygen-iodine laser (COIL) system has been fabricated by ion beam sputtering (IBS). When the incident angle is 45 deg. the reflectivity is about 99.9% from 1290 to 1340 nm and about 83.8% at 632.8 nm, and the phase r
