# i nclude<stdio.h> k,H4<")H
# i nclude<stdio.h> cWm.']
# i nclude<math.h> :=* -x
#define PI 3.1415926 {^~{X$YI
void ydgl(); 3B,nHU
float d,am,ro,e,h,p,dt0,d0,s,ds,r,al; BR|dW4\
int f; 0 X@5W$x
main() q.*qZ\;K
{ printf("Determaination the prime circle of cam\n"); :x_l"y"
printf("----------------------------\n"); E;N+B34
printf( "input ro=");scanf("%f",&ro); 4;_.|!LN
printf("input h=");scanf("%f",&h); d;f,vN(
printf("input e=");scanf("%f",&e); ar{Yq
printf("input dt0=");scanf("%f",&dt0); b{(:'.
am=0;p=PI/180; >$}nKPC,Y
printf("The initial data:ro=%f\n",ro); &c A?|(7-
printf("h=%f e=%f dt0=%f\n",h,e,dt0);
^s%Qt
do ,L`qV
{ro=ro+5; b*,R9
for(f=0;f<=dt0;f=f+2) &Zov9o:gx
{d=PI*f/dt0; 9[:nWp^
ydgl(); k(Ow.nkb
} h~dM*yo;
} J9/w_,,R$
while(am>30*p); 3b|.L
Jz+
printf("The intermediate results: am=%f\n",am/p); BWd?a6nU}
printf("ro=%f\n",ro); #Qkl| h
do ,2u]rLxx;
{ro=ro-1; ow+NT
if(ro<e) 1W5YS +pf
break; j&8U:Q,
5"{wnnY%K}
for(f=0;f<=dt0;f=f+2) 18a6i^7
{d=PI*f/dt0; =\`9 \Gd
ydgl(); 9gjx!t>`H
} MTr _8tI
} vG<Mz?wr
while((am>30*p)||(am<=29.5*p)); y#r=^r]l)
printf("The final results:max alfa=%f\n",am/p); ${`\In_?O
printf(" min ro=%f\n",ro); /bg8oB4
getch(); #E>f.:)
} GJ!usv u
void ydgl() H.'_NCF&;L
{ d0=dt0*p; Rb#?c+&#
s=0.5*h*(1-cos(d)); W&GDE
ds=0.5*h*PI*sin(d)/d0; I_v]^>Xw
r=sqrt(ro*ro-e*e); =_=jXWOQv
if((s+r)==0) ; <3w ,r
return; 3<B{-z
al=atan((ds-e)/(s+r)); !iITX,'8
if(al>am) UGl}=hwKkG
am=al; wtMS<$
}