# i nclude<stdio.h> jp| 1S^b
# i nclude<stdio.h> D
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# i nclude<math.h> ,[{Z_co
#define PI 3.1415926 f'Cx %
void ydgl(); dSq3V#Q
float d,am,ro,e,h,p,dt0,d0,s,ds,r,al; aZBb@~Y
int f; X J{b_h#N
main() %9Y3jB",2
{ printf("Determaination the prime circle of cam\n"); 'BmLR{[2L
printf("----------------------------\n"); e=#'rDm
printf( "input ro=");scanf("%f",&ro); hQPNxpe
printf("input h=");scanf("%f",&h); N "Mw1R4
printf("input e=");scanf("%f",&e); DF`?D
+
printf("input dt0=");scanf("%f",&dt0); V<W$ h`
am=0;p=PI/180; v>oWk:iJP
printf("The initial data:ro=%f\n",ro); (yxHXO9N
printf("h=%f e=%f dt0=%f\n",h,e,dt0); 2B`#c }P P
do pxgV Yr.
{ro=ro+5; Y24H`
s1u/
for(f=0;f<=dt0;f=f+2) 22_% u=p-|
{d=PI*f/dt0; J rgpDZ
ydgl(); E3P2
} ?@LqrKj 11
} P{ HYZg
while(am>30*p); J_ y+.p-
5
printf("The intermediate results: am=%f\n",am/p);
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printf("ro=%f\n",ro); qrxn%#\XP
do hCFgZiH2
{ro=ro-1; D/x!`&. sN
if(ro<e) uFl19
break; IwJ4K+
&/-^D/ ot
for(f=0;f<=dt0;f=f+2) N_^s;Qj
{d=PI*f/dt0; I?Fv!5p
ydgl(); %{*)-_M
} l:$i }.C
} ~f5g\n;
while((am>30*p)||(am<=29.5*p)); 5kbbeO|0G
printf("The final results:max alfa=%f\n",am/p); U2TR>0l
printf(" min ro=%f\n",ro); G}8Zkz@+
getch(); G>>TB{}
} ;.EW7` )Z
void ydgl() 66 @#V
{ d0=dt0*p; ).D+/D/"2
s=0.5*h*(1-cos(d)); ' En |-M5
ds=0.5*h*PI*sin(d)/d0; XjINRC8^4
r=sqrt(ro*ro-e*e); B;=-h(E}vJ
if((s+r)==0) kD.KZV
return; 9Impp5`/B
al=atan((ds-e)/(s+r)); U\~9YX 8
if(al>am) H)VzPe# {
am=al; 'wm :Xa
}
