C++ (Cpp) solve_quadratic_equation示例

示例#1

文件： intersection_ray2_circle.hpp 项目： urp/urban-robots

    std::pair< T, T > intersection( const ray<T,2u>& ray, const circle<T>& circle )
    { 
      // check for no intersection
    
      const T a = dot( ray.direction(), ray.direction() );
      const T b = T(2.) * sum( ray.direction() * ( ray.source() - circle.center() ) );
      const T c =   dot( circle.center(), circle.center() ) 
                  + dot( ray.source(), ray.source() ) 
                  - T(2.) * dot( ray.source(), circle.center() )
                  - sqr( circle.radius() );

      return solve_quadratic_equation(a,b,c);
    }

示例#2

文件： main.cpp 项目： CCJY/coliru

int main()
{
    auto p = solve_quadratic_equation(1, -1, -2)();
    std::cout << p.first << ", " << p.second << std::endl;
}

示例#3

文件： roots-of-a-quadratic-function.cpp 项目： Anatolt/RosettaCodeData

int main()
{
  std::pair<complex, complex> result = solve_quadratic_equation(1, -1e20, 1);
  std::cout << result.first << ", " << result.second << std::endl;
}