positive_quadrant_projection.cc File Reference

#include "sopt/maths.h"
#include "sopt/types.h"

Include dependency graph for positive_quadrant_projection.cc:

Go to the source code of this file.

Functions
int	main (int, char const **)

Function Documentation

main()

int main	(	int	,
		char const **
	)

Definition at line 4 of file positive_quadrant_projection.cc.

                             {
  // Create a matrix with a single negative real numbers
  using t_Matrix = sopt::Image<std::complex<int>>;
  t_Matrix input = 2 * t_Matrix::Ones(5, 5) + t_Matrix::Random(5, 5);
 
  // Apply projection
  t_Matrix posquad = sopt::positive_quadrant(input);
  // imaginary part and negative real part becomes zero
  if ((posquad.array().imag() != 0).any()) throw std::runtime_error("Imaginary part not zero");
 
  // positive real part unchanged
  posquad.real()(2, 3) = input.real()(2, 3);
  if ((posquad.array().real() != input.array().real()).all())
    throw std::runtime_error("Real part was modified");
 
  return 0;
}

References sopt::positive_quadrant().