c语言编程题：要求用泰勒级数求e的近似值。直到最后一项小于1e—6为止，并且将文件写入到磁盘中去。 C语言的程序设计：用泰勒级数求e的近似值，直到最后一项小于1...
c\u8bed\u8a00\uff0c\u7528\u6cf0\u52d2\u7ea7\u6570\u6c42e\u7684\u8fd1\u4f3c\u503c\u3002\u76f4\u5230\u6700\u540e\u4e00\u9879\u5c0f\u4e8e1e-6\u4e3a\u6b62\u3002#include
"stdio.h"
void
main\uff08\uff09
{
float
e=1.0,t=1.0\uff1b
int
n=1;
while(1/t>(1e-6))
//(1/n!)<(1e-6)\u662f\u7ed3\u675f\uff0c\u4f60\u4e66\u5199\u6709\u9519\uff0ci\u5e94\u662f1
{
t=t*n;
//\u5f97\u5230
n!
e=e+1/t;
//\u7d2f\u52a0(1/n!)\uff0c\u5373\u8ba1\u7b97\u6b64\u884c\u524d
e
=
1+(1/1!)+(1/2!)+....+(1/(n-1)!)\u518d\u52a0\u4e0a(1\u4fef\u653b\u7898\u7eaa\u9122\u614c\u7889\u82c7\u51ac\u4fe947;n!)
n++;
//n
:
2
3
4
...
}
printf("e=%8.6f\n",e);
}
#include "stdio.h"
void main()
{double sum=1,k=1,t=1;
int i=1;
while(k>=1e-6)
{ t=t*i;
k=1.0*i/t;
sum+=k;
i++;
}
printf("e=%lf\n",sum);
}
#include<stdio.h>
int main()
{
float i=1,e=0;
int p = 1;
e+=1/i;
do
{
i*=(p++);
e+=1/i;
}while((1/i)>1e-9);
printf("%f",e);
FILE* fp = fopen("result.txt","w");
fprintf(fp,"%f",e);
fclose(fp);
}
会输出到result.txt磁盘文件中
#include<stdio.h>
void main()
{
int i = 1;
int t = 1;
double e = 1;
do
{
t *= i++;
e += 1.0 / t;
}
while(t < 10e6);
printf("%.6f
",e);
FILE * fp = fopen("e.txt", "w");
if(fp)
{
fprintf(fp, "%.6f
", e);
fclose(fp);
}
else printf("File open error!
");
}
#include<stdio,h>
main()
{
float i=1,e=0;
e+=1/i;
do
{
i=i*(i+1)
e+=1/i;
}while((1/i)<10e-6)
printf("%f",e)
}
绛旓細include<stdio.h>int main(){ float i=1,e=0; int p = 1; e+=1/i; do { i*=(p++); e+=1/i; }while((1/i)>1e-9); printf("%f",e); FILE* fp = fopen("result.txt","w"); fprintf(fp,"%f",e); fclose(fp);} 浼氳緭鍑哄埌res...
绛旓細e = 1 + 1/1! + 1/2! + 1/3! + ... + 1/n!鍏朵腑锛宯琛ㄧず灞曞紑鐨勯」鏁帮紝n瓒婂ぇ锛岃繎浼煎艰秺绮剧‘銆傚洜姝わ紝鎴戜滑鍙互閫氳繃璁＄畻涓婅堪绾ф暟鐨勫拰鏉ユ眰e鐨勮繎浼煎笺備互涓嬫槸涓涓敤C璇█缂栧啓鐨绀轰緥浠ｇ爜锛屽睍绀哄浣曢氳繃娉板嫆绾ф暟鏉ユ眰e鐨勮繎浼煎硷細c include int main() { int n = 20; // 灞曞紑鐨勯」鏁 double...
绛旓細include "math.h"define PI 3.14156 float cosx(float x);float fun_cos(float x, int m);int main(){ float x = PI/2;printf("cos(%f)=%f\n",x,cos(x));//浣跨敤绯荤粺鍑芥暟cos璁＄畻 printf("cosx(%f)=%f\n",x,cosx(x));//浣跨敤娉板嫆鍏紡璁＄畻 return 0;} float fun_cos(float x,...
绛旓細scanf("%lf", &x);//搴︽暟 x = (x * M_PI) / 180;//杩欓噷鐨凪_PI鍦╩ath搴撻噷灏辨槸鍦嗗懆鐜囅 printf("%lf", sinx(x));return 0;}
绛旓細//#include "stdafx.h"//If the vc++6.0, with this line.#include "stdio.h"int main(void){ int i,t; double sum,x,tmp,xx; printf("Input x(real -360掳~+360掳)...\n"); scanf("%lf",&x); xx=x,x*=3.1415926535897932/180;printf("%f\n",xx); f...
绛旓細include<stdio.h> int main(){float i,e=1.0,t=1.0;for(i=1;t>=1.0e-6;i+=1){t/=i;e+=t;} printf("e=%f\n",e);getch();return 0;}
绛旓細include<stdio.h>#include<math.h>int main(){float jc(int n); //鏈夋敼鍔╢loat x,sin=0,b=0; //鏈夋敼鍔╥nt m=1,i=1,c=2;printf("璇疯緭鍏inx涓瓁鐨勫硷細");scanf("%f",&x);do{b=pow(-1,c)*pow(x,m)/jc(m);sin+=b;m+=2;c+=1;i++;}while(fabs(b)>=pow(10...
绛旓細c璇█鍒╃敤娉板嫆灞曞紑寮忓彲浠ュ弬鑰冧互涓嬬殑浠ｇ爜锛歩nclude <stdio.h> void main(){ int i,j,n;double k=1,x=0;printf("Input n: ");scanf("%d",&n);for(i=1;i<=n*2-1;i+=2){ for(j=1;j<=i;j++)k*=j;x+=(i+1)/(k*2);k=1;} printf("x=%f",x);} ...
绛旓細a[i]=jiecheng(i); sum += (float)1/a[i]; } printf("e鐨勫间负锛%.6f\n",sum); return 0;}int jiecheng(int N){ if(N==0 || N==1) return 1; else return N*jiecheng(N-1);}杩愯缁撴灉濡備笅:...
绛旓細int fac(int n) //fac鍑芥暟姹俷鐨 闃跺眰 { int i,m = 1;for(i = 1; i <= n; i++)m = m * i;return m;} int main(){ double e = 0; //e涓娉板嫆绾ф暟 int i;while(1.0/fac(i) >= 0.000001)//褰撴渶鍚庝竴椤瑰ぇ浜1e-6娆℃柟鏄惊鐜 { e = e + 1.0/fac(i); ...
