#include<bits/stdc++.h>
using namespace std;
double p, q, r, s, t, u;
double anik(double x)
{
double d = (p * exp(-x))+ (q*sin(x)) + (r*cos(x)) + (s*tan(x)) + (t*x*x) + u;
return d;
}
int main()
{
int i;
while(cin >> p >> q >> r >> s >> t >> u)
{
double a = 0.0, b = 1.0, x = 0, y = 0;
x = anik(a), y = anik(b);
if(x*y>0)
{
cout << "No solution" << "\n";
}
else
{
double c = 0;
for(i=1; i<=30; i++)
{
c = (a+b)/2;
double d = anik(c);
if(d > 0)
a = c;
else if(d <= 0)
b = c;
}
cout << showpoint;
cout << fixed;
cout << setprecision(4);
cout << c << "\n";
}
}
return 0;
}
using namespace std;
double p, q, r, s, t, u;
double anik(double x)
{
double d = (p * exp(-x))+ (q*sin(x)) + (r*cos(x)) + (s*tan(x)) + (t*x*x) + u;
return d;
}
int main()
{
int i;
while(cin >> p >> q >> r >> s >> t >> u)
{
double a = 0.0, b = 1.0, x = 0, y = 0;
x = anik(a), y = anik(b);
if(x*y>0)
{
cout << "No solution" << "\n";
}
else
{
double c = 0;
for(i=1; i<=30; i++)
{
c = (a+b)/2;
double d = anik(c);
if(d > 0)
a = c;
else if(d <= 0)
b = c;
}
cout << showpoint;
cout << fixed;
cout << setprecision(4);
cout << c << "\n";
}
}
return 0;
}
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