# i nclude<stdio.h> W&:0J
# i nclude<stdio.h> #r]Z2Y]
# i nclude<math.h> T1*.3_wtP
#define PI 3.1415926 wwywiFj
void ydgl(); ]@ke_'
"
float d,am,ro,e,h,p,dt0,d0,s,ds,r,al; *coUHbP9>
int f; \D(3~y>
main() UAT\ .
{ printf("Determaination the prime circle of cam\n"); {wsJ1v8!
printf("----------------------------\n"); oC*a;o
printf( "input ro=");scanf("%f",&ro); V=dOeuYd
printf("input h=");scanf("%f",&h); xY#J((-iH
printf("input e=");scanf("%f",&e); >*VvV/UU
printf("input dt0=");scanf("%f",&dt0); mO]>]
am=0;p=PI/180; rhy-o?
printf("The initial data:ro=%f\n",ro); LiV&47e*>
printf("h=%f e=%f dt0=%f\n",h,e,dt0); $Seh4
do -{k8^o7$
{ro=ro+5; Su"Z3gm5Kw
for(f=0;f<=dt0;f=f+2) c9fz x
{d=PI*f/dt0; u~j
H
ydgl(); oKCy,Ot<
} ;nP(S`'
} lTP#6zqfv
while(am>30*p); 2dkWzx
printf("The intermediate results: am=%f\n",am/p); `G/g/>y
printf("ro=%f\n",ro); )\EIXTZY=
do 0bM_EC
{ro=ro-1; b<~-s sL7a
if(ro<e) @R50M (@W
break; {yWL|:#K
G^#>HE|
for(f=0;f<=dt0;f=f+2) HXSryjF?
{d=PI*f/dt0; hN6wp_
ydgl(); l^nvwm`f#:
} #gO[di0WhC
} k|?[EWIi^
while((am>30*p)||(am<=29.5*p)); ?%UiW7}j';
printf("The final results:max alfa=%f\n",am/p); h!%y,4IBR
printf(" min ro=%f\n",ro); XLCqB|8`V
getch(); 4S~kNp$
} 69)"T{7
void ydgl() EI6kBRMo
{ d0=dt0*p; BJWlx*U]
s=0.5*h*(1-cos(d)); Lr"cO|F
ds=0.5*h*PI*sin(d)/d0; ~Yi4?B<
r=sqrt(ro*ro-e*e); 8]^|&"i.\d
if((s+r)==0) gM>?w{!LBx
return; *>:phs~r{
al=atan((ds-e)/(s+r)); \f?
K74
if(al>am) P@ew' JL%
am=al; $V!.z%Vgf
}