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¡¾ÇóÖú¡¿16λ MS-DOS ×Óϵͳ ÒÑÓÐ7È˲ÎÓë
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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); } ÇëÎÊÊÇʲôÎÊÌ⣬Ôõô½â¾ö¡£ÎÒÔÚÔËÐÐÆäËû³ÌÐò¼ÆËã»ý·ÖʱûÓÐÕâÖÖÎÊÌâ |
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ÓàÔó³É(½ð±Ò+2):ÐÁ¿àÁË£¡ 2010-05-14 13:31:46
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resonant(½ð±Ò+1):лл»ØÌû½»Á÷ 2010-05-15 16:05:38
resonant(½ð±Ò+1):лл»ØÌû½»Á÷ 2010-05-15 16:05:38
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