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muqiuyan

ľ³æ (СÓÐÃûÆø)

[½»Á÷] ¡¾ÇóÖú¡¿16λ MS-DOS ×Óϵͳ ÒÑÓÐ7È˲ÎÓë

ÇóÖú ÎÒÔÚÓÃCÓïÑÔÔËÐÐÒ»¸ö»ý·Ö³ÌÐòʱ£¬³öÏÖ  16λ MS-DOS ×Óϵͳ  Ìáʾ
³ÌÐòÈçÏ£º#include "math.h"
#include "stdio.h"
double simps1(a,b,f)
double a,b,(*f)();
{
  int n=100,k;
  double t,t2,s,s2,h,x;
  h = (b-a)/n;                       /* ÇóµÃ³õʼ²½³¤*/
  t = ((*f)(a)+(*f)(b))/2.0;         /* ¼ÆËã³õʼµÄ»ý·ÖÖµ*/
  for(k=1; k   {
    x = a+k*h;
    t = t+(*f)(x);                   /* ÀÛ´ÎÇóºÍ*/
  }
  t = t*h;                           /* ¾¡Á¿¼õÉٳ˷¨´ÎÊý*/
  s = t;
  do
  {
    t2 = 0.0;
    for(k=0; k     {
      x = a+(k+0.5)*h;               /* ÀÛ¼Ó¼ÆËã*/
      t2 = t2+(*f)(x);
    }
    t2 = (t+h*t2)/2.0;
    s2 = (4.0*t2-t)/3.0;             /* ¼ÆËãеĻý·ÖÖµ*/
    t = t2;
    s = s2;                          /* ¸üлý·ÖÖµ*/
    h = h/2.0;                       /* ¸üв½³¤*/
    n = 2*n;                         /* ¸üл®·ÖÊý*/
  }while((fabs(s2-s)>1e-8));
  return(s);
}

double cal_c(double zz,double D,double r)
{
  double seigerma=3.2536e-10,rad=0.300e-10,k=1.380658e-23,ipuseilong=152.68*k,T=273.15;
  double c,derlta_4,derlta_5,derlta_10,derlta_11,oumiga_0,oumiga_1,oumiga;
  double f(double);
     derlta_4=1/4*(pow((1-r/D-rad/D),-4)-pow((1+r/D-rad/D),-4));
        derlta_5=1/5*(pow((1-r/D-rad/D),-5)-pow((1+r/D-rad/D),-5));
        derlta_10=1/10*(pow((1-r/D-rad/D),-10)-pow((1+r/D-rad/D),-10));
        derlta_11=1/11*(pow((1-r/D-rad/D),-11)-pow((1+r/D-rad/D),-11));
       
        oumiga_0=pow(seigerma,10)*(derlta_10+rad/D*derlta_11)/pow(D,11)/r;
        oumiga_1=pow(seigerma,6)*(derlta_4+rad/D*derlta_5)/pow(D,5)/r;
       
        oumiga=2*zz*ipuseilong*(oumiga_0-oumiga_1);
       
        c=simps1(0,D,f);        /* Óñ䲽³¤ÐÁ²·ÉúÇó»ý·¨»ý·Ö*/
        c=4*3.1415/k/T*c;
     printf("simp: c=%2.5f\n",c);
        return(c);
}


main()
{ int i;
  double zz[2]={20,24},D[2]={3.95e-10,4.33e-10};
  double c[2],r;
for(i=0;i=1;i++)
{
  c=cal_c(zz,D,r);
  printf("c[%d]=%.4f\n",i,c);
}

}


#include "math.h"
double f(r)
double r; /* ±»»ý·ÖµÄº¯Êý*/

{ double oumiga,k,T;  
  double y;
    y=exp(-oumiga/k/T)*r*r;
  return(y);
}


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[ Last edited by muqiuyan on 2010-5-13 at 14:49 ]
3Â¥2010-05-13 14:48:15
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muqiuyan

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ÒýÓûØÌû:
Originally posted by holmescn at 2010-05-13 23:48:13:
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holmescn

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muqiuyan(½ð±Ò+1): 2010-05-15 09:55:53
CODE:
c=simps1(0,D,f);        /* Óñ䲽³¤ÐÁ²·ÉúÇó»ý·¨»ý·Ö*/

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muqiuyan

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by holmescn at 2010-05-14 11:05:23:
CODE:
c=simps1(0,D,f);        /* Óñ䲽³¤ÐÁ²·ÉúÇó»ý·¨»ý·Ö*/

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CODE:
c=simps1(0.0, D, f);

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resonant(½ð±Ò+1):лл»ØÌû½»Á÷ 2010-05-15 16:05:38
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