#include <iostream>
#include <cstdio>
#include <string.h>
#include <algorithm>
#include <cmath>
#include <vector>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <map>#define max(x,y) ((x)>(y)?(x):(y))
#define min(x,y) ((x)<(y)?(x):(y))
#define abs(x) ((x)>=0?(x):-(x))
#define i64 long long
#define u32 unsigned int
#define u64 unsigned long long
#define clr(x,y) memset(x,y,sizeof(x))
#define CLR(x) x.clear()
#define ph(x) push(x)
#define pb(x) push_back(x)
#define Len(x) x.length()
#define SZ(x) x.size()
#define PI acos(-1.0)
#define sqr(x) ((x)*(x))
#define MP(x,y) make_pair(x,y)
#define EPS 1e-5#define FOR0(i,x) for(i=0;i<x;i++)
#define FOR1(i,x) for(i=1;i<=x;i++)
#define FOR(i,a,b) for(i=a;i<=b;i++)
#define DOW0(i,x) for(i=x;i>=0;i--)
#define DOW1(i,x) for(i=x;i>=1;i--)
#define DOW(i,a,b) for(i=a;i>=b;i--)
using namespace std;void RD(int &x){scanf("%d",&x);}
void RD(i64 &x){scanf("%I64d",&x);}
void RD(u32 &x){scanf("%u",&x);}
void RD(double &x){scanf("%lf",&x);}
void RD(int &x,int &y){scanf("%d%d",&x,&y);}
void RD(i64 &x,i64 &y){scanf("%I64d%I64d",&x,&y);}
void RD(u32 &x,u32 &y){scanf("%u%u",&x,&y);}
void RD(double &x,double &y){scanf("%lf%lf",&x,&y);}
void RD(int &x,int &y,int &z){scanf("%d%d%d",&x,&y,&z);}
void RD(i64 &x,i64 &y,i64 &z){scanf("%I64d%I64d%I64d",&x,&y,&z);}
void RD(u32 &x,u32 &y,u32 &z){scanf("%u%u%u",&x,&y,&z);}
void RD(double &x,double &y,double &z){scanf("%lf%lf%lf",&x,&y,&z);}
void RD(char &x){x=getchar();}
void RD(char *s){scanf("%s",s);}
void RD(string &s){cin>>s;}void PR(int x) {printf("%d\n",x);}
void PR(i64 x) {printf("%I64d\n",x);}
void PR(u32 x) {printf("%u\n",x);}
void PR(double x) {printf("%.6lf\n",x);}
void PR(char x) {printf("%c\n",x);}
void PR(char *x) {printf("%s\n",x);}
void PR(string x) {cout<<x<<endl;}const int N=10005;int DB(double x)
{if(x>EPS) return 1;if(x<-EPS) return -1;return 0;
}class point
{
public:double x,y;point(){}point(double _x,double _y){x=_x;y=_y;}point operator+(point a){return point(x+a.x,y+a.y);}point operator-(point a){return point(x-a.x,y-a.y);}double operator*(point a){return x*a.y-y*a.x;}point operator*(double t){return point(x*t,y*t);}double operator^(point a){return x*a.x+y*a.y;}point operator/(double t){return point(x/t,y/t);}double getLen(){return sqrt(x*x+y*y);}void get(){RD(x,y);}int operator==(point a){return DB(x-a.x)==0&&DB(y-a.y)==0;}int operator<(point a){if(DB(x-a.x)) return x<a.x;return y<a.y;}point adjust(double L){double temp=getLen();return point(x*L/temp,y*L/temp);}void print(){printf("%.6lf %.6lf\n",x,y);}
};class Vector
{
public:point s,t;double ang;Vector(){}Vector(point _s,point _t){s=_s;t=_t;ang=atan2(t.y-s.y,t.x-s.x);}};Vector a[N],b[N],st[N];
point p[N];
int n;double cross(point a,point b,point p)
{return (b-a)*(p-a);
}int in(point p,Vector a)
{return cross(a.s,a.t,p)>0;
}point getCross(Vector a,Vector b)
{double s1=(a.s-b.s)*(a.t-b.s);double s2=(a.t-b.t)*(a.s-b.t);return (b.s*s2+b.t*s1)/(s1+s2);
}Vector move(Vector a,double L)
{point d=point(a.s.y-a.t.y,a.t.x-a.s.x);d=d.adjust(L);return Vector(a.s+d,a.t+d);
}int cmp(Vector a,Vector b)
{return a.ang<b.ang;
}int OK(double L)
{int i;FOR1(i,n) b[i]=move(a[i],L);int head=1,tail=1;st[1]=b[1];for(i=2;i<=n;i++){while(tail>head&&!in(getCross(st[tail-1],st[tail]),b[i])) tail--;while(tail>head&&!in(getCross(st[head],st[head+1]),b[i])) head++;st[++tail]=b[i];}while(tail>head&&!in(getCross(st[tail],st[tail-1]),st[head])) tail--;while(tail>head&&!in(getCross(st[head],st[head+1]),st[tail])) head++;return tail>head+1;
}int main()
{RD(n);int i;FOR1(i,n) p[i].get();p[0]=p[n];FOR1(i,n) a[i]=Vector(p[i-1],p[i]);double low=0,high=1e8,mid;while(DB(low-high)==-1){mid=(low+high)/2;if(OK(mid)) low=mid;else high=mid;}PR(mid);return 0;
}