# i nclude<stdio.h> nqr[HFWs
# i nclude<stdio.h> :dB6/@fW
# i nclude<math.h> p*vEVo
#define PI 3.1415926 |o6B:NH,rg
void ydgl(); 3^C
float d,am,ro,e,h,p,dt0,d0,s,ds,r,al; hv8V=Z'Q
int f; @<;0h|
main() w;)@2}
{ printf("Determaination the prime circle of cam\n"); ^hLAMaR
printf("----------------------------\n"); 10t9Qv/
printf( "input ro=");scanf("%f",&ro); H htAD Y
printf("input h=");scanf("%f",&h); .%.J Q
printf("input e=");scanf("%f",&e); ;j S~0R
printf("input dt0=");scanf("%f",&dt0); `Fnt#F}
am=0;p=PI/180; u|i.6:/=
printf("The initial data:ro=%f\n",ro); aO6w:IO
printf("h=%f e=%f dt0=%f\n",h,e,dt0); }fdo
Aid~
do :IvKxOv
{ro=ro+5; BlMc<k
for(f=0;f<=dt0;f=f+2) dy`K5lC@
{d=PI*f/dt0; >}Fe9Y.o
ydgl(); g"^<LX-
} 9*U3uyPi
} m&cVda/
while(am>30*p); HvLvSy1U
printf("The intermediate results: am=%f\n",am/p); d%8hWlffz
printf("ro=%f\n",ro); rISg`-
do 6]1cy&SG
{ro=ro-1; UTC|8
if(ro<e) 1ti+
Q0~
break; CM|?;PBuv
>+LFu?y
for(f=0;f<=dt0;f=f+2) %9C_p]P*
{d=PI*f/dt0; 5Z@OgR
ydgl(); AQ7w5}g+V
} ?@!dc6
} ^U)xQD"
while((am>30*p)||(am<=29.5*p)); AT+7!UGL
printf("The final results:max alfa=%f\n",am/p); /p}^Tpu
printf(" min ro=%f\n",ro); rI23e[
getch(); `2.[8%6
} W^v3pH-y#
void ydgl() L/t'|<m
{ d0=dt0*p; E>NRC\^@
s=0.5*h*(1-cos(d)); ^`?2g[AA
ds=0.5*h*PI*sin(d)/d0; 86y)+h`
r=sqrt(ro*ro-e*e); sT
]JDC6
if((s+r)==0) nJC/yS|
return; +`'=K ;{U
al=atan((ds-e)/(s+r)); {$5?[KD
if(al>am) OTwIR<_B+
am=al; ^}8qPBz
}