# i nclude<stdio.h> ma QxU(
# i nclude<stdio.h> ft0d5n!ui4
# i nclude<math.h> \S?-[v*{
#define PI 3.1415926 4W E)2vkS
void ydgl(); ]+w 27!
float d,am,ro,e,h,p,dt0,d0,s,ds,r,al; =1)9>= }
int f; H
]](xYy.
main() i/!KUbt
{ printf("Determaination the prime circle of cam\n"); GN5*
printf("----------------------------\n"); :8N
by$#V
printf( "input ro=");scanf("%f",&ro); SymlirL
printf("input h=");scanf("%f",&h); ajM\\a?
printf("input e=");scanf("%f",&e); 9j-;-`$S
printf("input dt0=");scanf("%f",&dt0); YbZ?["S&
am=0;p=PI/180; Z3u6m0!
printf("The initial data:ro=%f\n",ro); A%&lW9z7
printf("h=%f e=%f dt0=%f\n",h,e,dt0); Zm6jF
do ! z5c+JqN
{ro=ro+5; P~x4h{~Gd
for(f=0;f<=dt0;f=f+2) x1Gc|K/-
{d=PI*f/dt0; @q@I(%_`
ydgl(); KMl3`+i
} DM\pi9<m
} 8W7ET@`
while(am>30*p); U Q)^`Zj
printf("The intermediate results: am=%f\n",am/p); i_`Po%
printf("ro=%f\n",ro); pMAFZfte!x
do ]a*26AbU+
{ro=ro-1; fNyXDCl
if(ro<e) +OSSgY$
break; W~l.feW$i
Go]y{9+(7
for(f=0;f<=dt0;f=f+2) l6MBnvi
{d=PI*f/dt0; .~^A!t
ydgl(); 1NrNTBI@
} u,`V%J?vW
} F<*zL:-Z
while((am>30*p)||(am<=29.5*p)); N];K
printf("The final results:max alfa=%f\n",am/p); P/k#([:2
printf(" min ro=%f\n",ro); P.^*K:5@
getch(); DD>n-8M@>
} M3JV^{O/DV
void ydgl() ,d^H Ag^j
{ d0=dt0*p; )hVn/*mH
s=0.5*h*(1-cos(d)); o nv0gb/J
ds=0.5*h*PI*sin(d)/d0; 9%MgA ik(
r=sqrt(ro*ro-e*e); DoICf1
if((s+r)==0) QV#HN"F/K
return; $HRl:KDdP~
al=atan((ds-e)/(s+r)); T=g2gmo9
if(al>am) 5pff}Ru`
am=al; dn_l#$ U
}