/*import java.util.Scanner; //主类 public class student122 { //主方法 public static void main(String[] args){ //定义7个元素的字符数组 String[] st = new String[7]; inputSt(st); //调用输入方法 calculateSt(st); //调用计算方法 outputSt(st); //调用输出方法 } //其他方法 //输入方法 private static void inputSt(String st[]){ System.out.println("输入学生的信息："); System.out.println("学号 姓名 成绩1，2，3"); //创建键盘输入类 Scanner ss = new Scanner(System.in); for(int i=0; i<5; i++){ st[i] = ss.next(); //键盘输入1个字符串 } } //计算方法 private static void calculateSt(String[] st){ int sum = 0; //总分赋初值 int ave = 0; //平均分赋初值 for(int i=2;i<5;i++) { /计总分，字符变换成整数后进行计算 sum += Integer.parseInt(st[i]); } ave = sum/3; //计算平均分 //整数变换成字符后保存到数组里 st[5] = String.valueOf(sum); st[6] = String.valueOf(ave); } //输出方法 private static void outputSt(String[] st){ System.out.print("学号 姓名 "); //不换行 System.out.print("成绩1 成绩2 成绩3 "); System.out.println("总分 平均分");//换行 //输出学生信息 for(int i=0; i<7; i++){ //按格式输出，小于6个字符，补充空格 System.out.printf("%6s", st[i]); } System.out.println(); //输出换行 } }*/ import java.util.Scanner; public class student122 { public static void main(String[] args) { // TODO 自动生成的方法存根 String[][] st = new String[3][8]; inputSt(st); calculateSt(st); outputSt(st); } //输入方法 private static void inputSt(String st[][]) { System.out.println("输入学生信息："); System.out.println("班级 学号 姓名 成绩：数学 物理 化学"); //创建键盘输入类 Scanner ss = new Scanner(System.in); for(int j = 0; j < 3; j++) { for(int i = 0; i < 6; i++) { st[j][i] = ss.next(); } } } //输出方法 private static void outputSt(String st[][]) { System.out.println("序号 班级 学号 姓名 成绩：数学 物理 化学 总分 平均分"); //输出学生信息 for(int j = 0; j < 3; j++) { System.out.print(j+1 + ":"); for(int i = 0; i < 8; i++) { System.out.printf("%6s", st[j][i]); } System.out.println(); } } //计算方法 private static void calculateSt(String[][] st) { int sum1 = 0; int sum2 = 0; int sum3 = 0; int ave1 = 0; int ave2 = 0; int ave3 = 0; for(int i = 3; i < 6; i++) { sum1 += Integer.parseInt(st[0][i]); } ave1 = sum1/3; for(int i = 3; i < 6; i++) { sum2 += Integer.parseInt(st[1][i]); } ave2 = sum2/3; for(int i = 3; i < 6; i++) { sum3 += Integer.parseInt(st[2][i]); } ave3 = sum3/3; st[0][6] = String.valueOf(sum1); st[1][6] = String.valueOf(sum2); st[2][6] = String.valueOf(sum3); st[0][7] = String.valueOf(ave1); st[1][7] = String.valueOf(ave2); st[2][7] = String.valueOf(ave3); } }
上传时间： 2017-03-17
上传用户：simple
1．Describe a Θ(n lg n)-time algorithm that, given a set S of n integers and another integer x, determines whether or not there exist two elements in S whose sum is exactly x. (Implement exercise 2.3-7.)
上传时间： 2017-04-01
上传用户：糖儿水嘻嘻
1．Describe a Θ(n lg n)-time algorithm that, given a set S of n integers and another integer x, determines whether or not there exist two elements in S whose sum is exactly x. (Implement exercise 2.3-7.) #include<stdio.h> #include<stdlib.h> void merge(int arr[],int low,int mid,int high){ int i,k; int *tmp=(int*)malloc((high-low+1)*sizeof(int)); int left_low=low; int left_high=mid; int right_low=mid+1; int right_high=high; for(k=0;left_low<=left_high&&right_low<=right_high;k++) { if(arr[left_low]<=arr[right_low]){ tmp[k]=arr[left_low++]; } else{ tmp[k]=arr[right_low++]; } } if(left_low<=left_high){ for(i=left_low;i<=left_high;i++){ tmp[k++]=arr[i]; } } if(right_low<=right_high){ for(i=right_low;i<=right_high;i++) tmp[k++]=arr[i]; } for(i=0;i<high-low+1;i++) arr[low+i]=tmp[i]; } void merge_sort(int a[],int p,int r){ int q; if(p<r){ q=(p+r)/2; merge_sort(a,p,q); merge_sort(a,q+1,r); merge(a,p,q,r); } } int main(){ int a[8]={3,5,8,6,4,1,1}; int i,j; int x=10; merge_sort(a,0,6); printf("after Merging-Sort:\n"); for(i=0;i<7;i++){ printf("%d",a[i]); } printf("\n"); i=0;j=6; do{ if(a[i]+a[j]==x){ printf("exist"); break; } if(a[i]+a[j]>x) j--; if(a[i]+a[j]<x) i++; }while(i<=j); if(i>j) printf("not exist"); system("pause"); return 0; }
上传时间： 2017-04-01
上传用户：糖儿水嘻嘻
ansible是目前比较流行的集群管理运维工具，本书介绍的其基础知识，全英文。
上传时间： 2018-02-05
上传用户：子非木哉
DESCRIPTION The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low-power modes, is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 1 μs. The MSP430G2x13 and MSP430G2x53 series are ultra-low-power mixed signal microcontrollers with built-in 16- bit timers, up to 24 I/O capacitive-touch enabled pins, a versatile analog comparator, and built-in communication capability using the universal serial communication interface. In addition the MSP430G2x53 family members have a 10-bit analog-to-digital (A/D) converter. For configuration details see Table 1. Typical applications include low-cost sensor systems that capture analog signals, convert them to digital values, and then process the data for display or for transmission to a host system.
上传时间： 2018-12-25
上传用户：ygyh
AEC-Q100 qualified • 12 V and 24 V battery systems compliance • 3.3 V and 5 V logic compatible I/O • 8-channel configurable MOSFET pre-driver – High-side (N-channel and P-channel MOS) – Low-side (N-channel MOS) – H-bridge (up to 2 H-bridge) – Peak & Hold (2 loads) • Operating battery supply voltage 3.8 V to 36 V • Operating VDD supply voltage 4.5 V to 5.5 V • All device pins, except the ground pins, withstand at least 40 V • Programmable gate charge/discharge currents for improving EMI behavior
标签： configurable Automotive pre-driver suitable channel systems MOSFET fully High side
上传时间： 2019-03-27
上传用户：guaixiaolong
# include<stdio.h> # include<math.h> # define N 3 main(){ float NF2(float *x,float *y); float A[N][N]={{10,-1,-2},{-1,10,-2},{-1,-1,5}}; float b[N]={7.2,8.3,4.2},sum=0; float x[N]= {0,0,0},y[N]={0},x0[N]={}; int i,j,n=0; for(i=0;i<N;i++) { x[i]=x0[i]; } for(n=0;;n++){ //计算下一个值 for(i=0;i<N;i++){ sum=0; for(j=0;j<N;j++){ if(j!=i){ sum=sum+A[i][j]*x[j]; } } y[i]=(1/A[i][i])*(b[i]-sum); //sum=0; } //判断误差大小 if(NF2(x,y)>0.01){ for(i=0;i<N;i++){ x[i]=y[i]; } } else break; } printf("经过%d次雅可比迭代解出方程组的解：\n",n+1); for(i=0;i<N;i++){ printf("%f ",y[i]); } } //求两个向量差的二范数函数 float NF2(float *x,float *y){ int i; float z,sum1=0; for(i=0;i<N;i++){ sum1=sum1+pow(y[i]-x[i],2); } z=sqrt(sum1); return z; }
上传时间： 2019-10-13
上传用户：大萌萌撒
transimpedance linearization circuitry. This allows it to drive video loads with excellent differential gain and phase perfor mance on only 50 mW of power. The AD8001 is a current feedback amplifier and features gain flatness of 0.1 dB to 100 MHz while offering differential gain and phase error of 0.01% and 0.025°. This makes the AD8001 ideal for professional video electronics such as cameras and video switchers. Additionally, the AD8001’s low distortion and fast settling make it ideal for buffer high-speed A-to-D converters. The AD8001 offers low power of 5.5 mA max (VS = ±5 V) and can run on a single +12 V power supply, while being capable of delivering over 70 mA of load current. These features make this amplifier ideal for portable and battery-powered applications where size and power are critical. The outstanding bandwidth of 800 MHz along with 1200 V/µs of slew rate make the AD8001 useful in many general purpose high-speed applications where dual power supplies of up to ±6 V and single supplies from 6 V to 12 V are needed. The AD8001 is available in the industrial temperature range of –40°C to +85°C.
上传时间： 2020-04-21
上传用户：su1254
I saw the light of the future when I first read Ray Kurzweil’s best-seller book The Singularity Is Near: When Humans Transcend Biology. One cubic inch of nanotube cir- cuitry, once fully developed, would be up to one hundred million times more powerful than the human brain.
标签： Predictive Cognitive Warning System Early The
上传时间： 2020-05-26
上传用户：shancjb
Licensed spectrum remains 3GPP operators’ top priority to deliver advanced services and user experience Opportunistic use of unlicensed spectrum is becoming an important complement for operators to meet the growing traffic demand Moving forward 3GPP operators will have two options to offload traffic to unlicensed spectrum: 1. Wi-Fi (via LTE/Wi-Fi interworking) 2. LTE over unlicensed It will then be up to each individual operator to choose which approach to use, which will depend on a number of factors
标签： 3GPP_unlicensed_Dino_Flore 2015 01
上传时间： 2020-05-26
上传用户：shancjb
