# i nclude<stdio.h> @{@b^tk
# i nclude<stdio.h> zLl-{Kk
# i nclude<math.h> T9c7cp[
#define PI 3.1415926
vGi<" Sn7
void ydgl(); PY.HZ/#d
float d,am,ro,e,h,p,dt0,d0,s,ds,r,al; M5VW1Ns
int f; Hdyl]q-(P
main() $ #!oejLD
{ printf("Determaination the prime circle of cam\n"); 5J`w8[;
printf("----------------------------\n"); aA?Qr&]M
printf( "input ro=");scanf("%f",&ro); ,[
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printf("input h=");scanf("%f",&h); W"%n5)
printf("input e=");scanf("%f",&e);
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printf("input dt0=");scanf("%f",&dt0); }C @xl9S "
am=0;p=PI/180; jga;q
printf("The initial data:ro=%f\n",ro); ,It0brF
printf("h=%f e=%f dt0=%f\n",h,e,dt0); QuS=^,]
do _gVihu
{ro=ro+5; 76T7<.S
for(f=0;f<=dt0;f=f+2) SXsszb:_
{d=PI*f/dt0; rT R$\ [C
ydgl(); V~PGmn[V
} ?J$k
5;
} /cClV"S*G
while(am>30*p); e^*&&
printf("The intermediate results: am=%f\n",am/p); 5"h4XINZ
printf("ro=%f\n",ro); 'Qt[cW
do iU+SXsXLR4
{ro=ro-1; rZ,qHM
if(ro<e) PZ/tkw
break; qD%88c)g
qVU<jt
for(f=0;f<=dt0;f=f+2) 0-PT%R
{d=PI*f/dt0; 7y^)n<'co
ydgl(); ~0CNCP
} t!wbT79/
} 4(,.<#
while((am>30*p)||(am<=29.5*p)); 5!ngM
printf("The final results:max alfa=%f\n",am/p); ot7f?tF2<J
printf(" min ro=%f\n",ro); M"]?'TMfXc
getch(); %x#S?GMV<
} w5q6c%VZ
void ydgl() =9,mt
K~
{ d0=dt0*p; Q:)4
s=0.5*h*(1-cos(d)); ExS&fUn`C
ds=0.5*h*PI*sin(d)/d0; 9V)cf
r=sqrt(ro*ro-e*e); _9D]1f=&
if((s+r)==0) pKXSJ"Xo
return; !_Y%+Rkp0
al=atan((ds-e)/(s+r)); >CG;df<~
if(al>am) At>e4t2@
am=al; &5jc
&CS
}