# include <math.h>
# include <stdio.h>
# include <stdlib.h>
# include <time.h>

# include "r8ncf.h"

int main ( );

void r8ncf_dif2_test ( );
void r8ncf_indicator_test ( );
void r8ncf_mtv_test ( );
void r8ncf_mv_test ( );
void r8ncf_print_test ( );
void r8ncf_print_some_test ( );
void r8ncf_random_test ( );
void r8ncf_to_r8ge_test ( );
void r8ncf_zeros_test ( );
void timestamp ( );

/******************************************************************************/

int main ( )

/******************************************************************************/
/*
  Purpose:

    r8ncf_test() tests r8ncf().

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    24 August 2022

  Author:

    John Burkardt
*/
{
  timestamp ( );
  printf ( "\n" );
  printf ( "r8ncf_test():\n" );
  printf ( "  C version\n" );
  printf ( "  Test r8ncf().\n" );

  r8ncf_dif2_test ( );
  r8ncf_indicator_test ( );
  r8ncf_mtv_test ( );
  r8ncf_mv_test ( );
  r8ncf_print_test ( );
  r8ncf_print_some_test ( );
  r8ncf_random_test ( );
  r8ncf_to_r8ge_test ( );
  r8ncf_zeros_test ( );
/*
  Terminate.
*/
  printf ( "\n" );
  printf ( "r8ncf_test():\n" );
  printf ( "  Normal end of execution.\n" );
  printf ( "\n" );
  timestamp ( );

  return 0;
}
/******************************************************************************/

void r8ncf_dif2_test ( )

/******************************************************************************/
/*
  Purpose:

    R8NCF_DIF2_TEST tests R8NCF_DIF2.

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    20 July 2016

  Author:

   John Burkardt
*/
{
  double *a;
  int m = 5;
  int n = 7;
  int nz_num;
  int *rowcol;

  printf ( "\n" );
  printf ( "R8NCF_DIF2_TEST\n" );
  printf ( "  R8NCF_DIF2 sets up an R8NCF second difference matrix;\n" );
  printf ( "\n" );
  printf ( "  Matrix rows M =    %d\n", m );
  printf ( "  Matrix columns N = %d\n", n );

  nz_num = r8ncf_dif2_nz_num ( m, n );

  printf ( "  Matrix nonzeros NZ_NUM = %d\n", nz_num );

  rowcol = r8ncf_dif2_rowcol ( m, n, nz_num );

  a = r8ncf_dif2 ( m, n, nz_num, rowcol );

  r8ncf_print ( m, n, nz_num, rowcol, a, "  The R8NCF second difference matrix:" );

  free ( a );
  free ( rowcol );

  return;
}
/******************************************************************************/

void r8ncf_indicator_test ( )

/******************************************************************************/
/*
  Purpose:

    R8NCF_INDICATOR_TEST tests R8NCF_INDICATOR.

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    14 April 2013

  Author:

   John Burkardt
*/
{
  double *a;
  int m = 5;
  int n = 7;
  int nz_num = 15;
  int rowcol[2*15] = {
    0, 0, 
    1, 1,
    2, 2,
    3, 3, 
    4, 4, 
    1, 0, 
    4, 0, 
    0, 1, 
    4, 1,
    0, 3, 
    1, 3, 
    2, 3,
    3, 4, 
    3, 5, 
    0, 6 };

  printf ( "\n" );
  printf ( "R8NCF_INDICATOR_TEST\n" );
  printf ( "  R8NCF_INDICATOR sets up an R8NCF indicator matrix;\n" );
  printf ( "\n" );
  printf ( "  Matrix rows M =    %d\n", m );
  printf ( "  Matrix columns N = %d\n", n );
  printf ( "  Matrix nonzeros =  %d\n", nz_num );

  a = r8ncf_indicator ( m, n, nz_num, rowcol );

  r8ncf_print ( m, n, nz_num, rowcol, a, "  The R8NCF indicator matrix:" );

  free ( a );

  return;
}
/******************************************************************************/

void r8ncf_mtv_test ( )

/******************************************************************************/
/*
  Purpose:

    R8NCF_MTV_TEST tests R8NCF_MTV.

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    14 April 2013

  Author:

   John Burkardt
*/
{
  double *a;
  double *b;
  int m = 5;
  int n = 7;
  int nz_num = 15;
  int rowcol[2*15] = {
    0, 0, 
    1, 1,
    2, 2,
    3, 3, 
    4, 4, 
    1, 0, 
    4, 0, 
    0, 1, 
    4, 1,
    0, 3, 
    1, 3, 
    2, 3,
    3, 4, 
    3, 5, 
    0, 6 };
  double *x;

  printf ( "\n" );
  printf ( "R8NCF_MTV_TEST\n" );
  printf ( "  R8NCF_MTV computes b=A'*x, where A is an R8NCF matrix;\n" );
  printf ( "\n" );
  printf ( "  Matrix rows M =    %d\n", m );
  printf ( "  Matrix columns N = %d\n", n );
  printf ( "  Matrix nonzeros =  %d\n", nz_num );

  a = r8ncf_indicator ( m, n, nz_num, rowcol );

  r8ncf_print ( m, n, nz_num, rowcol, a, "  The matrix A:" );

  x = r8vec_indicator1_new ( m );

  r8vec_print ( m, x, "  The vector x:" );

  b = r8ncf_mtv ( m, n, nz_num, rowcol, a, x );

  r8vec_print ( n, b, "  The product b=A'*x:" );

  free ( a );
  free ( b );
  free ( x );

  return;
}
/******************************************************************************/

void r8ncf_mv_test ( )

/******************************************************************************/
/*
  Purpose:

    R8NCF_MV_TEST tests R8NCF_MV.

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    14 April 2013

  Author:

   John Burkardt
*/
{
  double *a;
  double *b;
  int m = 5;
  int n = 7;
  int nz_num = 15;
  int rowcol[2*15] = {
    0, 0, 
    1, 1,
    2, 2,
    3, 3, 
    4, 4, 
    1, 0, 
    4, 0, 
    0, 1, 
    4, 1,
    0, 3, 
    1, 3, 
    2, 3,
    3, 4, 
    3, 5, 
    0, 6 };
  double *x;

  printf ( "\n" );
  printf ( "R8NCF_MV_TEST\n" );
  printf ( "  R8NCF_MV computes b=A*x, where A is an R8NCF matrix;\n" );
  printf ( "\n" );
  printf ( "  Matrix rows M =    %d\n", m );
  printf ( "  Matrix columns N = %d\n", n );
  printf ( "  Matrix nonzeros =  %d\n", nz_num );

  a = r8ncf_indicator ( m, n, nz_num, rowcol );

  r8ncf_print ( m, n, nz_num, rowcol, a, "  The matrix A:" );

  x = r8vec_indicator1_new ( n );

  r8vec_print ( n, x, "  The vector x:" );

  b = r8ncf_mv ( m, n, nz_num, rowcol, a, x );

  r8vec_print ( m, b, "  The product b=A*x:" );

  free ( a );
  free ( b );
  free ( x );

  return;
}
/******************************************************************************/

void r8ncf_print_test ( )

/******************************************************************************/
/*
  Purpose:

    R8NCF_PRINT_TEST tests R8NCF_PRINT.

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    21 July 2016

  Author:

   John Burkardt
*/
{
  double *a;
  int m = 5;
  int n = 7;
  int nz_num = 15;
  int rowcol[2*15] = {
    0, 0, 
    1, 1,
    2, 2,
    3, 3, 
    4, 4, 
    1, 0, 
    4, 0, 
    0, 1, 
    4, 1,
    0, 3, 
    1, 3, 
    2, 3,
    3, 4, 
    3, 5, 
    0, 6 };

  printf ( "\n" );
  printf ( "R8NCF_PRINT_TEST\n" );
  printf ( "  R8NCF_PRINT prints an R8NCF matrix;\n" );
  printf ( "\n" );
  printf ( "  Matrix rows M =    %d\n", m );
  printf ( "  Matrix columns N = %d\n", n );
  printf ( "  Matrix nonzeros =  %d\n", nz_num );

  a = r8ncf_indicator ( m, n, nz_num, rowcol );

  r8ncf_print ( m, n, nz_num, rowcol, a, "  The R8NCF  matrix:" );

  free ( a );

  return;
}
/******************************************************************************/

void r8ncf_print_some_test ( )

/******************************************************************************/
/*
  Purpose:

    R8NCF_PRINT_SOME_TEST tests R8NCF_PRINT_SOME.

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    21 July 2016

  Author:

   John Burkardt
*/
{
  double *a;
  int m = 5;
  int n = 7;
  int nz_num = 15;
  int rowcol[2*15] = {
    0, 0, 
    1, 1,
    2, 2,
    3, 3, 
    4, 4, 
    1, 0, 
    4, 0, 
    0, 1, 
    4, 1,
    0, 3, 
    1, 3, 
    2, 3,
    3, 4, 
    3, 5, 
    0, 6 };

  printf ( "\n" );
  printf ( "R8NCF_PRINT_SOME_TEST\n" );
  printf ( "  R8NCF_PRINT_SOME prints some of an R8NCF matrix;\n" );
  printf ( "\n" );
  printf ( "  Matrix rows M =    %d\n", m );
  printf ( "  Matrix columns N = %d\n", n );
  printf ( "  Matrix nonzeros =  %d\n", nz_num );

  a = r8ncf_indicator ( m, n, nz_num, rowcol );

  r8ncf_print_some ( m, n, nz_num, rowcol, a, 0, 1, 4, 3, 
    "  Rows 0-4, Cols 1-3:" );

  free ( a );

  return;
}
/******************************************************************************/

void r8ncf_random_test ( )

/******************************************************************************/
/*
  Purpose:

    R8NCF_RANDOM_TEST tests R8NCF_RANDOM.

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    14 April 2013

  Author:

   John Burkardt
*/
{
  double *a;
  int m = 5;
  int n = 7;
  int nz_num = 15;
  int rowcol[2*15] = {
    0, 0, 
    1, 1,
    2, 2,
    3, 3, 
    4, 4, 
    1, 0, 
    4, 0, 
    0, 1, 
    4, 1,
    0, 3, 
    1, 3, 
    2, 3,
    3, 4, 
    3, 5, 
    0, 6 };
  int seed;

  printf ( "\n" );
  printf ( "R8NCF_RANDOM_TEST\n" );
  printf ( "  R8NCF_RANDOM randomizes an R8NCF  matrix;\n" );
  printf ( "\n" );
  printf ( "  Matrix rows M =    %d\n", m );
  printf ( "  Matrix columns N = %d\n", n );
  printf ( "  Matrix nonzeros =  %d\n", nz_num );

  seed = 123456789;
  a = r8ncf_random ( m, n, nz_num, rowcol, &seed );

  r8ncf_print ( m, n, nz_num, rowcol, a, "  The R8NCF random matrix:" );

  free ( a );

  return;
}
/******************************************************************************/

void r8ncf_to_r8ge_test ( )

/******************************************************************************/
/*
  Purpose:

    R8NCF_TO_R8GE_TEST tests R8NCF_TO_R8GE.

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    14 April 2013

  Author:

   John Burkardt
*/
{
  double *a;
  double *a_r8ge;
  int m = 5;
  int n = 7;
  int nz_num = 15;
  int rowcol[2*15] = {
    0, 0, 
    1, 1,
    2, 2,
    3, 3, 
    4, 4, 
    1, 0, 
    4, 0, 
    0, 1, 
    4, 1,
    0, 3, 
    1, 3, 
    2, 3,
    3, 4, 
    3, 5, 
    0, 6 };

  printf ( "\n" );
  printf ( "R8NCF_TO_R8GE_TEST\n" );
  printf ( "  R8NCF_TO_R8GE converts an R8NCF matrix to R8GE format;\n" );
  printf ( "\n" );
  printf ( "  Matrix rows M =    %d\n", m );
  printf ( "  Matrix columns N = %d\n", n );
  printf ( "  Matrix nonzeros =  %d\n", nz_num );

  a = r8ncf_indicator ( m, n, nz_num, rowcol );

  r8ncf_print ( m, n, nz_num, rowcol, a, "  The R8NCF matrix:" );

  a_r8ge = r8ncf_to_r8ge ( m, n, nz_num, rowcol, a );

  r8ge_print ( m, n, a_r8ge, "  The R8GE matrix:" );

  free ( a );
  free ( a_r8ge );

  return;
}
/******************************************************************************/

void r8ncf_zeros_test ( )

/******************************************************************************/
/*
  Purpose:

    R8NCF_ZEROS_TEST tests R8NCF_ZEROS.

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    21 July 2016

  Author:

   John Burkardt
*/
{
  double *a;
  int m = 5;
  int n = 7;
  int nz_num;
  int *rowcol;

  printf ( "\n" );
  printf ( "R8NCF_ZEROS_TEST\n" );
  printf ( "  R8NCF_ZEROS zeros an R8NCF matrix;\n" );
  printf ( "\n" );
  printf ( "  Matrix rows M =    %d\n", m );
  printf ( "  Matrix columns N = %d\n", n );

  nz_num = r8ncf_dif2_nz_num ( m, n );

  printf ( "  Matrix nonzeros NZ_NUM = %d\n", nz_num );

  rowcol = r8ncf_dif2_rowcol ( m, n, nz_num );

  a = r8ncf_zeros ( m, n, nz_num, rowcol );

  r8ncf_print ( m, n, nz_num, rowcol, a, "  The R8NCF zero matrix:" );

  free ( a );
  free ( rowcol );

  return;
}
/******************************************************************************/

void timestamp ( )

/******************************************************************************/
/*
  Purpose:

    TIMESTAMP prints the current YMDHMS date as a time stamp.

  Example:

    31 May 2001 09:45:54 AM

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    24 September 2003

  Author:

    John Burkardt
*/
{
# define TIME_SIZE 40

  static char time_buffer[TIME_SIZE];
  const struct tm *tm;
  time_t now;

  now = time ( NULL );
  tm = localtime ( &now );

  strftime ( time_buffer, TIME_SIZE, "%d %B %Y %I:%M:%S %p", tm );

  printf ( "%s\n", time_buffer );

  return;
# undef TIME_SIZE
}