# i nclude<stdio.h> 'V";"Ei
# i nclude<stdio.h> b#%s!
# i nclude<math.h> Vy-N3L
#define PI 3.1415926 /Po't(-x
void ydgl(); rbl EyCR
float d,am,ro,e,h,p,dt0,d0,s,ds,r,al; A<ca9g3
int f; f,GF3vu"
main() _^cDB1I?
{ printf("Determaination the prime circle of cam\n"); 8z&7wO
printf("----------------------------\n"); rZ<n0w
printf( "input ro=");scanf("%f",&ro); GtcY){7
printf("input h=");scanf("%f",&h); l
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printf("input e=");scanf("%f",&e); r )8[LN-
printf("input dt0=");scanf("%f",&dt0); uJ jm50R<
am=0;p=PI/180; k.nq,
printf("The initial data:ro=%f\n",ro); 6 R}]RuFQ
printf("h=%f e=%f dt0=%f\n",h,e,dt0); >r+Dl\R
do 3vx*gfr3
{ro=ro+5; "&;>l<V
for(f=0;f<=dt0;f=f+2) C?6wIdp
{d=PI*f/dt0; ab?
ydgl(); DiMkcK_e
} J7:VRf|,?(
} ZuIr=`"j
while(am>30*p); +4G]!tV6
printf("The intermediate results: am=%f\n",am/p); r 7w1~z
printf("ro=%f\n",ro); 3|4jS"t{f
do PveY8[i
{ro=ro-1; G+Ft2/+\
if(ro<e) 9W3zcL8
break; I}JC ~=`j
M0[7>N_
for(f=0;f<=dt0;f=f+2) 7b7~D +b
{d=PI*f/dt0; WW33ZJ
ydgl(); -a:+ h\K
} v'`VyXetl
} },9Hq~TA
while((am>30*p)||(am<=29.5*p)); \9Nd"E[B
printf("The final results:max alfa=%f\n",am/p); eSvS<\p
printf(" min ro=%f\n",ro); dg[&5D1Q
getch(); c#'t][Ii
}
ismx evD
void ydgl() 6Y4sv5G
{ d0=dt0*p; D:`b61sWi_
s=0.5*h*(1-cos(d)); ~,[<R
ds=0.5*h*PI*sin(d)/d0; olc7&R
r=sqrt(ro*ro-e*e); O_%X>Q9
if((s+r)==0) Ne7HPSWiOP
return; jWHv9XtW
al=atan((ds-e)/(s+r)); (tQ#('(w
if(al>am) eXo7_#
am=al; JJ\|FZN
}