Index of Functions: A B C D E F G H I J K L M N O P Q R S T U V W X
Index Page xpose6_c

Table of contents

Procedure Abstract Required_Reading Keywords Brief_I/O Detailed_Input | Detailed_Output Parameters Exceptions Files Particulars Examples | Restrictions Literature_References Author_and_Institution Version Index_Entries

#### Procedure

       xpose6_c ( Transpose a matrix, 6x6 )

       void xpose6_c ( ConstSpiceDouble  m1     [6][6],
                       SpiceDouble       mout   [6][6] )

#### Abstract

       Transpose a 6x6 matrix.

#### Required_Reading

       None.

#### Keywords

       MATRIX

#### Brief_I/O

       VARIABLE  I/O  DESCRIPTION
       --------  ---  --------------------------------------------------
       m1         I   6x6 matrix to be transposed.
       mout       O   Transpose of `m1'.

#### Detailed_Input

       m1          is any double precision 6x6 matrix.

#### Detailed_Output

       mout        is a double precision, 6x6 matrix which contains the
                   transpose of `m1'.  `mout' may overwrite `m1'.

#### Parameters

       None.

#### Exceptions

       Error free.

#### Files

       None.

#### Particulars

       This is a utility routine intended to facilitate passing state
       transformation matrices between C and Fortran.

#### Examples

       The numerical results shown for this example may differ across
       platforms. The results depend on the SPICE kernels used as
       input, the compiler and supporting libraries, and the machine
       specific arithmetic implementation.

       1) Given a 6x6 double precision matrix, find its transpose.

          Example code begins here.

          /.
             Program xpose6_ex1
          ./
          #include <stdio.h>
          #include "SpiceUsr.h"

          int main( )
          {

             /.
             Local variables.
             ./
             SpiceDouble          mout   [6][6];

             SpiceInt             i;

             /.
             Define the input matrix.
             ./
             SpiceDouble          m1     [6][6] = {
                                        { 1.0,  2.0,  3.0,  4.0,  5.0,  6.0},
                                        { 0.0,  7.0,  8.0,  9.0, 10.0, 11.0},
                                        { 0.0,  0.0, 12.0, 13.0, 14.0, 15.0},
                                        { 0.0,  0.0,  0.0, 16.0, 17.0, 18.0},
                                        { 0.0,  0.0,  0.0,  0.0, 19.0, 20.0},
                                        { 0.0,  0.0,  0.0,  0.0,  0.0, 21.0}  };

             /.
             Compute the transpose of `m1'.
             ./
             xpose6_c ( m1, mout );

             /.
             Display the results.
             ./
             printf( "Input matrix (M1):\n" );
             printf( "\n" );
             for ( i = 0; i < 6; i++ )
             {
                printf( "%6.1f %5.1f %5.1f %5.1f %5.1f %5.1f\n",
                                   m1[i][0], m1[i][1], m1[i][2],
                                   m1[i][3], m1[i][4], m1[i][5] );
             }
             printf( "\n" );
             printf( "Transpose of M1:\n" );
             printf( "\n" );
             for ( i = 0; i < 6; i++ )
             {
                printf( "%6.1f %5.1f %5.1f %5.1f %5.1f %5.1f\n",
                             mout[i][0], mout[i][1], mout[i][2],
                             mout[i][3], mout[i][4], mout[i][5] );
             }

             return ( 0 );
          }

          When this program was executed on a Mac/Intel/cc/64-bit
          platform, the output was:

          Input matrix (M1):

             1.0   2.0   3.0   4.0   5.0   6.0
             0.0   7.0   8.0   9.0  10.0  11.0
             0.0   0.0  12.0  13.0  14.0  15.0
             0.0   0.0   0.0  16.0  17.0  18.0
             0.0   0.0   0.0   0.0  19.0  20.0
             0.0   0.0   0.0   0.0   0.0  21.0

          Transpose of M1:

             1.0   0.0   0.0   0.0   0.0   0.0
             2.0   7.0   0.0   0.0   0.0   0.0
             3.0   8.0  12.0   0.0   0.0   0.0
             4.0   9.0  13.0  16.0   0.0   0.0
             5.0  10.0  14.0  17.0  19.0   0.0
             6.0  11.0  15.0  18.0  20.0  21.0

#### Restrictions

       None.

#### Literature_References

       None.

#### Author_and_Institution

       N.J. Bachman        (JPL)
       J. Diaz del Rio     (ODC Space)
       B.V. Semenov        (JPL)
       E.D. Wright         (JPL)

#### Version

       -CSPICE Version 1.0.4, 13-AUG-2021 (JDR)

           Edited the header to comply with NAIF standard. Added complete
           code example based on existing example.

       -CSPICE Version 1.0.3, 08-JAN-2014 (BVS)

           Corrected a minor typo in the header.

       -CSPICE Version 1.0.2, 16-JAN-2008 (EDW)

           Corrected typos in header titles:

           Detailed Input to -Detailed_Input
           Detailed Output to -Detailed_Output

       -CSPICE Version 1.0.1, 10-NOV-2006 (EDW)

           Added -Keywords and -Parameters section headers.
           Reordered section headers.

       -CSPICE Version 1.0.0, 16-APR-1999 (NJB)

#### Index_Entries

       transpose a 6x6_matrix

#### Link to routine xpose6_c source file xpose6_c.c

    Fri Dec 31 18:41:15 2021