text: #ifndef FUNC_MATRIX_CREATION
  #define FUNC_MATRIX_CREATION
  
  #include "error_codes.h"
  
  error_t create_matrix(int row_length, int column_length, double ***matrix);
  error_t create_vinograd_array(double **matrix, int row, int col, char method, double **array);
  
  #endif
  