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

 *

 * 

 *

 * Copyright (C) 1997-2015 by Dimitri van Heesch.

 *

 * Permission to use, copy, modify, and distribute this software and its

 * documentation under the terms of the GNU General Public License is hereby 

 * granted. No representations are made about the suitability of this software 

 * for any purpose. It is provided "as is" without express or implied warranty.

 * See the GNU General Public License for more details.

 *

 * Documents produced by Doxygen are derivative works derived from the

 * input used in their production; they are not affected by this license.

 *

 */

/*! \page formulas Including formulas 

Doxygen allows you to put \LaTeX formulas in the

output (this works only for the HTML and \LaTeX output, 

not for the RTF nor for the man page output). To be able to include 

formulas (as images) in the HTML documentation, you will also need to 

have the following tools installed

\c latex: the \LaTeX compiler, needed to parse the formulas. 

    To test I have used the teTeX 1.0 distribution.

\c dvips: a tool to convert DVI files to PostScript files 

    I have used version 5.92b from Radical Eye software for testing.

\c gs: the GhostScript interpreter for converting PostScript files 

    to bitmaps. I have used Aladdin GhostScript 8.0 for testing.

For the HTML output there is also an alternative solution using

MathJax which does not

require the above tools. If you enable \ref cfg_use_mathjax "USE_MATHJAX" in

the config then the latex formulas will be copied to the HTML "as is" and a

client side javascript will parse them and turn them into (interactive) images.

There are three ways to include formulas in the documentation.

Using in-text formulas that appear in the running text. 

    These formulas should be put between a pair of \\f\$ 

    commands, so

\verbatim

  The distance between \f$(x_1,y_1)\f$ and \f$(x_2,y_2)\f$ is 

  \f$\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\f$.

\endverbatim results in:

  The distance between \f$(x_1,y_1)\f$ and \f$(x_2,y_2)\f$ is 

  \f$\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\f$.

Unnumbered displayed formulas that are centered on a separate line.

    These formulas should be put between \\f[ and \\f] commands.

    An example:

\verbatim

  \f[

    |I_2|=\left| \int_{0}^T \psi(t) 

             \left\{ 

                u(a,t)-

                \int_{\gamma(t)}^a 

                \frac{d\theta}{k(\theta,t)}

                \int_{a}^\theta c(\xi)u_t(\xi,t)\,d\xi

             \right\} dt

          \right|

  \f]

\endverbatim

  results in:

  \f[

    |I_2|=\left| \int_{0}^T \psi(t) 

             \left\{ 

                u(a,t)-

                \int_{\gamma(t)}^a 

                \frac{d\theta}{k(\theta,t)}

                \int_{a}^\theta c(\xi)u_t(\xi,t)\,d\xi

             \right\} dt

          \right|

  \f]

Formulas or other latex elements that are not in a math 

    environment can be specified using \\f{environment}, where

    \c environment is the name of the \LaTeX environment, 

    the corresponding end command is \\f}. Here is an example for an 

    equation array

\verbatim

   \f{eqnarray*}{

        g &=& \frac{Gm_2}{r^2} \\ 

          &=& \frac{(6.673 \times 10^{-11}\,\mbox{m}^3\,\mbox{kg}^{-1}\,

              \mbox{s}^{-2})(5.9736 \times 10^{24}\,\mbox{kg})}{(6371.01\,\mbox{km})^2} \\ 

          &=& 9.82066032\,\mbox{m/s}^2

   \f}

\endverbatim

  which results in:

   \f{eqnarray*}

        g &=& \frac{Gm_2}{r^2} \\ 

          &=& \frac{(6.673 \times 10^{-11}\,\mbox{m}^3\,\mbox{kg}^{-1}\,

              \mbox{s}^{-2})(5.9736 \times 10^{24}\,\mbox{kg})}{(6371.01\,\mbox{km})^2} \\ 

          &=& 9.82066032\,\mbox{m/s}^2

   \f}

For the first two commands one should make sure formulas contain 

valid commands in \LaTeX's math-mode. For the third command

the section should contain valid command for the specific environment.

\warning Currently, doxygen is not very fault tolerant in recovering 

from typos in formulas. It may be necessary to remove the

file formula.repository that is written to the html directory to 

get rid of an incorrect formula.

\htmlonly

Go to the next section or return to the

 index.

\endhtmlonly

*/