Function main

Exercises/Modules/Chapter 09/Soln9_03.cpp:18–29

std::span<double> normalize_range(std::span<double> data);

int main()
{
  double samples[] {
                     11.0,  23.0,  13.0,  4.0,
                     57.0,  36.0, 317.0, 88.0,
                      9.0, 100.0, 121.0, 12.0
                   };

  show_data(samples, "Original Values");        // Output original values
  normalize_range(samples);                     // Normalize the values
  show_data(samples, "Normalized Values", 12);  // Output normalized values
}

// Outputs an array of double values
void show_data(std::span<const double> data,