# 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++){
//計算下一個值
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;
}
//判斷誤差大小
if(NF2(x,y)>0.01){
for(i=0;i<N;i++){
x[i]=y[i];
}
}
else
break;
}
printf("經過%d次雅可比迭代解出方程組的解：\n",n+1);
for(i=0;i<N;i++){
printf("%f ",y[i]);
}
}
//求兩個向量差的二范數函數
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;
}
標簽：
C語言
編寫
迭代
上傳時間：
2019-10-13
上傳用戶：大萌萌撒
STM32F407單片機開發板PDF原理圖+AD集成封裝庫+主要器件技術手冊資料:AD集成封裝庫列表：Library Component Count : 54Name Description----------------------------------------------------------------------------------------------------24C256 AMS1117ATK-HC05 ATK-HC05BAT BEEP BUTTONC CAPCH340G USB2UARTDDB9 DHT11 數字溫濕度傳感器HEAD2HEAD2*22 HR911105 HS0038Header 16 Header, 16-PinHeader 2 Header, 2-PinHeader 2X2 Header, 2-Pin, Dual rowHeader 3X2 Header, 3-Pin, Dual rowHeader 4 Header, 4-PinHeader 9X2 Header, 9-Pin, Dual rowIS62WV51216 JTAG KEY_M L LAN8720 ETH PHYLED2 Typical RED, GREEN, YELLOW, AMBER GaAs LEDLSENS LIGHT SENSL_SOP MAX3232 MAX3485 MIC MOS-P IRLML6401/SI2301MP2359 DC DC Step Down ICMPU6050 9軸運動處理傳感器NPN 8050/BCW846/BCW847NRF24L01 PHONE_M PNP 8550/BCW68pow R SMBJ TVSSN65HVD230D STM32F407ZET6 STM32F407ZET6TEST-POINT 測試點TFT_LCD TPAD ALIENTEK TPADUSB5USB_A_90 USB-A-90W25X16
標簽：
stm32f407
單片機
封裝
上傳時間：
2021-12-15
上傳用戶：ttalli
