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  1. #include <iostream>
  2. #include <complex>
  3.  
  4. std::pair< std::complex<double>, std::complex<double> > Quad(double a, double b, double c)
  5. {
  6.     std::complex<double> d = b*b - 4*a*c;
  7.     return { (-b+std::sqrt(d))/(2*a), (-b-std::sqrt(d))/(2*a) };
  8. }
  9.  
  10. int main()
  11. {
  12.     double x = 10;
  13.     double y = -1;
  14.     double z = 1;
  15.     std::cout << "The solutions are: " << Quad(x,y,z).first << " and " << Quad(x,y,z).second << '\n';
  16. }
  17.  
Success #stdin #stdout 0s 2984KB
comments (?)
stdin 
Standard input is empty
stdout 
The solutions are: (0.05,0.31225) and (0.05,-0.31225)
https://ideone.com/q3yaO4
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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