# i nclude<stdio.h> <j\;>3Q
# i nclude<stdio.h> 5%+}rSn7
# i nclude<math.h> 8 tygs
#define PI 3.1415926 WKl'
void ydgl(); RQCQGa^cP
float d,am,ro,e,h,p,dt0,d0,s,ds,r,al; hIQ[:f
int f; !t
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main() )v=G}j^
{ printf("Determaination the prime circle of cam\n"); b8Rh|"J)d
printf("----------------------------\n"); 7NB 9Vu|gD
printf( "input ro=");scanf("%f",&ro); &}0wzcMg
printf("input h=");scanf("%f",&h); wDSUMB<?
printf("input e=");scanf("%f",&e); [4Faq3T"
printf("input dt0=");scanf("%f",&dt0); .'b3iG&
am=0;p=PI/180; L4pjh&+8
printf("The initial data:ro=%f\n",ro); 4spaw?j
printf("h=%f e=%f dt0=%f\n",h,e,dt0); n&m?BuG
do 6
2`PK+
{ro=ro+5; ;Uqx&5P}
for(f=0;f<=dt0;f=f+2) 'e>sHL
{d=PI*f/dt0; DRW.NL o
ydgl(); 2c~?UK[1
} s#4ew}
} !mxh]x<e
while(am>30*p); C^" Hj
printf("The intermediate results: am=%f\n",am/p); bsi q9$F
printf("ro=%f\n",ro); DIqT>HHZ
do aE\BAbD7
{ro=ro-1; ,(0XsBL
if(ro<e) 4@]xn
break; z3Y)-
`Kc %S^C'
for(f=0;f<=dt0;f=f+2) e#6&uFce
{d=PI*f/dt0; o`K^Wy~+k#
ydgl(); UW/3{2
} R;E"Qdt
} :gD0EqV
while((am>30*p)||(am<=29.5*p)); @yn^6cE
printf("The final results:max alfa=%f\n",am/p); |/\U^AHm"h
printf(" min ro=%f\n",ro); 6l\UNG7
getch(); @oz&
} CoUd16*"JM
void ydgl() wEfz2Eq
{ d0=dt0*p; (: TGe v
s=0.5*h*(1-cos(d)); 9{%g-u\
ds=0.5*h*PI*sin(d)/d0; !UBDx$]^
r=sqrt(ro*ro-e*e); y/}VtD
if((s+r)==0) a4jnu:e
return; j,56Lh%1
al=atan((ds-e)/(s+r)); /y](mu "!
if(al>am) bmO__1
am=al; 1&% d
}