# i nclude<stdio.h> 7/+I"~
# i nclude<stdio.h> _QBN/KE9
# i nclude<math.h> ?!^ow5"8
#define PI 3.1415926 _HF66)X7
void ydgl(); _; !7:'J
float d,am,ro,e,h,p,dt0,d0,s,ds,r,al; FlGU1%]m
int f; 6D|[3rXr
main() 0`c|ZzY
{ printf("Determaination the prime circle of cam\n"); SQ8xfD*
printf("----------------------------\n"); vz5x{W
printf( "input ro=");scanf("%f",&ro); dp#JvZb
printf("input h=");scanf("%f",&h); ?C)a0>L
printf("input e=");scanf("%f",&e); SW5V:|/
printf("input dt0=");scanf("%f",&dt0); 3}aKok"k
am=0;p=PI/180;
7 OAM
printf("The initial data:ro=%f\n",ro); X-LCIT|1
printf("h=%f e=%f dt0=%f\n",h,e,dt0); n2}(Pt.
do K8#MQR2@
{ro=ro+5; $`j%z@[g
for(f=0;f<=dt0;f=f+2) EyR~VKbJ'
{d=PI*f/dt0; scX'>\w&c
ydgl(); \4Uhc3
} !q\MXS($#u
} \ vn!SO7
while(am>30*p); ypU-/}Cf,
printf("The intermediate results: am=%f\n",am/p); >[}lC7 z,
printf("ro=%f\n",ro); B@cC'F#G
do q9Zp8&<EqH
{ro=ro-1; ebno:)
if(ro<e) SU,G0.
break; QN47+)cVt"
qm^|7m^
for(f=0;f<=dt0;f=f+2) fi%)520
{d=PI*f/dt0; >~@O\n-t
ydgl(); S[ch/
} (#kKL??W
} SR%k|YT
while((am>30*p)||(am<=29.5*p)); aVB/CoM9
printf("The final results:max alfa=%f\n",am/p); :eIi^K z[
printf(" min ro=%f\n",ro);
I~T
getch(); c wNJ{S+
} cWtuI(.
void ydgl() T@wgWE<0y_
{ d0=dt0*p; >|X )
s=0.5*h*(1-cos(d)); vB74r]'F
ds=0.5*h*PI*sin(d)/d0; |I[/Fl:
r=sqrt(ro*ro-e*e); yPrF2@#XZ/
if((s+r)==0) 6VUs:iO1j5
return; \?v?%}x
al=atan((ds-e)/(s+r)); E5aRTDLq
if(al>am) k5M5bH',
am=al; Mj&G5R~_
}