# i nclude<stdio.h> `,pBOh|'
# i nclude<stdio.h> :/?
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# i nclude<math.h> "e\73?P
#define PI 3.1415926 .w\4Th#
void ydgl(); uq:'`o-1
float d,am,ro,e,h,p,dt0,d0,s,ds,r,al; AS0(NlV
int f; M[b~5L+S
main() u(r
T2
{ printf("Determaination the prime circle of cam\n"); Jnt
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printf("----------------------------\n"); cQh{z8Bf?<
printf( "input ro=");scanf("%f",&ro); .O~rAu*K
printf("input h=");scanf("%f",&h); [uie]*^
printf("input e=");scanf("%f",&e); -=rGN"(M
_
printf("input dt0=");scanf("%f",&dt0); YA8/TFu<_
am=0;p=PI/180; ) tV]h#4
printf("The initial data:ro=%f\n",ro); O{]}{Ss
printf("h=%f e=%f dt0=%f\n",h,e,dt0); 0~<t :q!
do (#je0ES
{ro=ro+5; 'uUa|J1mu
for(f=0;f<=dt0;f=f+2) t?uw^nV 3E
{d=PI*f/dt0; ~c1~)QzZ
ydgl(); :i?c
} ,aWfGh#$
} T^xp2cZ
while(am>30*p); qj*BV
printf("The intermediate results: am=%f\n",am/p); 0\$Lnwp_
printf("ro=%f\n",ro); mn<ea&
do v Ma$JPauI
{ro=ro-1; Z.>?Dt
if(ro<e) ~;I{d7z,;
break; U/(R_U>=
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for(f=0;f<=dt0;f=f+2) p-g@cwOu
{d=PI*f/dt0; \BsvUGd
ydgl(); 9qZ|=r]y'
} Z[j-.,Qu
} [iSLn3XXRX
while((am>30*p)||(am<=29.5*p)); t^9q>[/d`
printf("The final results:max alfa=%f\n",am/p); ER$~kFE2yP
printf(" min ro=%f\n",ro); 1 gRR
getch(); v#IZSBvuQK
} Ug O \+cI
void ydgl() Z3T26Uk
{ d0=dt0*p; v:j4#pEWD
s=0.5*h*(1-cos(d)); inGH'nl_
ds=0.5*h*PI*sin(d)/d0; 2gjA>ET`N
r=sqrt(ro*ro-e*e); gD fVY%[Z
if((s+r)==0) e''Wm.>g(+
return; CV7.hF<
al=atan((ds-e)/(s+r)); X_|} b[b
if(al>am) }W%}_UT
am=al; s*}d`"YvH
}