You are here:
Foswiki
>
Main Web
>
TWikiUsers
>
CezaryMigaszewski
>
ModelowaKrzywa
(revision 1) (raw view)
Edit
Attach
Omowienie programu wkrotce ---------- <verbatim> /*modelowa_krzywa.c*/ #include<stdio.h> #include<math.h> #define DZIEN 86400 /*liczba sekund w 1 dniu*/ #define N 2 /*liczba planet*/ #define B 0.0001 /*dokladnosc rozwiazania r-nia Keplera*/ #define LK 25000 /*liczba krokow*/ #define PI 3.141592653589793115997963468544185161590576172 /*liczba pi*/ float NR(float P, float tau, float t, float e, float b, float pi); main() { int i,k; float h,t,Vr,niu,E; float V0,K[N],P[N],e[N],w[N],tau[N]; FILE *wynik; char *nazwa; t=400*DZIEN; h=0.1*DZIEN; /*dlugosc kroku*/ V0=-5.5; K[0]=15; P[0]=1080*DZIEN; e[0]=0.19; w[0]=81*PI/180; tau[0]=539*DZIEN; K[1]=6; P[1]=10.5262*DZIEN; e[1]=0.016; w[1]=53*PI/180; tau[1]=101.4*DZIEN; nazwa="HD114729_modelowa.dat"; wynik=fopen(nazwa,"w"); for (k=1; k<=LK; ++k) { Vr=V0; for (i=0; i<=N-1; ++i) { E=NR(P[i],tau[i],t,e[i],B,PI); niu=2*atan(sqrt((1+e[i])/(1-e[i]))*tan(E/2)); Vr=Vr+K[i]*(cos(w[i]+niu)+e[i]*cos(w[i])); } fprintf(wynik,"%10.4f%10.2f%10.2f\n",t/DZIEN,Vr,1); t=t+h; } fclose(wynik); return 0; } /*funkcja obliczajaca E w czasie t metoda Newtona-Raphsona IV rzedu z dokladnoscia b*/ float NR(float P, float tau, float t, float e, float b, float pi) { float MM,EE,f0,f1,f2,f3,d1,d2,d3; MM=2*pi*(t-tau)/P; EE=MM; f0=EE-e*sin(EE)-MM; f1=1-e*cos(EE); f2=e*sin(EE); f3=e*cos(EE); d1=-f0/f1; d2=-f0/(f1+d1*f2/2); d3=-f0/(f1+d2*f2/2+d2*d2*f3/6); while ((d3>b) || (d3<-b)) { EE=EE+d3; f0=EE-e*sin(EE)-MM; f1=1-e*cos(EE); f2=e*sin(EE); f3=e*cos(EE); d1=-f0/f1; d2=-f0/(f1+d1*f2/2); d3=-f0/(f1+d2*f2/2+d2*d2*f3/6); } return EE; } </verbatim> -- Main.CezaryMigaszewski - 26 Feb 2005
Edit
|
Attach
|
P
rint version
|
H
istory
:
r5
|
r4
<
r3
<
r2
<
r1
|
B
acklinks
|
V
iew topic
|
Edit WikiText
|
More topic actions...
Topic revision: r1 - 26 Feb 2005,
CezaryMigaszewski
Main
Log In
or
Register
Toolbox
Create New Topic
Index
Search
Changes
Notifications
RSS Feed
Statistics
Preferences
Users
Groups
Webs
Cosmo
Main
Sandbox
System
English
Français
Polski
Copyright © CC-BY-SA by the contributing authors. All material on this collaboration platform is copyrighted under CC-BY-SA by the contributing authors unless otherwise noted.
Ideas, requests, problems regarding Foswiki?
Send feedback