# i nclude<stdio.h> E+R1 !.
# i nclude<stdio.h> ith
3=`3
# i nclude<math.h> A8fOQ
#define PI 3.1415926 RJ ||} 5
void ydgl(); z/WE,R
float d,am,ro,e,h,p,dt0,d0,s,ds,r,al; )72+\C[*~r
int f; N~d ?WD\^
main() gG:Vt}N
{ printf("Determaination the prime circle of cam\n"); ZaDyg"Tw+
printf("----------------------------\n"); { MSkHf=
printf( "input ro=");scanf("%f",&ro); B^Nf #XN(
printf("input h=");scanf("%f",&h); eJVjuG
printf("input e=");scanf("%f",&e); qL&[K>2z
printf("input dt0=");scanf("%f",&dt0); 8#
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am=0;p=PI/180; H*QIB_
printf("The initial data:ro=%f\n",ro); +xSHL|:b
printf("h=%f e=%f dt0=%f\n",h,e,dt0); m!4ndO;0vh
do djQH1^(IU
{ro=ro+5; *:YiimOY"
for(f=0;f<=dt0;f=f+2) I<4Pur>"
{d=PI*f/dt0; !M]uL&:
ydgl(); q J=~Y|(
} 5k3n\sqZA
} be{H$9'
while(am>30*p); HU}7zK2
printf("The intermediate results: am=%f\n",am/p); F/bT)QT<f
printf("ro=%f\n",ro); z8~NZ;A
do L9\1+rq
{ro=ro-1; k\YG^I
if(ro<e) yw[g!W
break; VT%NO'0
RtP2]O(F
for(f=0;f<=dt0;f=f+2) OwUhdiG
{d=PI*f/dt0; Ar|0b}=)>
ydgl(); vNY{j7l/W
} %@ODs6 R0
} fue(UMF~
while((am>30*p)||(am<=29.5*p)); AGO+p(6d=g
printf("The final results:max alfa=%f\n",am/p); N/'b$m5=
S
printf(" min ro=%f\n",ro); JEwa
&
getch(); ?|C2*?hZ+
} k>Vci{v
void ydgl() |y#
Jx
{ d0=dt0*p; "a>q`RaIQ"
s=0.5*h*(1-cos(d)); +I:Unp
ds=0.5*h*PI*sin(d)/d0; B6nX$T4zP
r=sqrt(ro*ro-e*e); vq0Tk
bzs
if((s+r)==0) z'U1bMg
return; 6V:U(g
al=atan((ds-e)/(s+r)); r1m]HFN
if(al>am) S6M}WR^,
am=al; )?naN
}