text: /**
  * @file doxygen_modules.h
  * @brief Defines the modules, into which this project is seperated.
  *
  * Defines the three modules (TrajectoryIO, Calculations, kissFFT) this project contains.
  * I didn't want to shoehorn these into one of the other source files.
  *
  */
  
  /**
  * @defgroup TrajectoryIO Trajectory I/O
  * @brief Basic tools to read and write trajectories and perform basic distance calculations.
  */
  
  /**
  * @defgroup Calculations Calculations
  * @brief Calculations to be performed on the trajectory.
  */
  
  /**
  * @defgroup kissFFT kissFFT
  * @brief Parts of the excellent kissFFT library made by Mark Borgerding.
  *
  * kissFFT is a FFT library written to be easy to incorporate into other projects, while being reasonably efficient.
  * It is written and maintained by Mark Borgerding, for more detail see the [github page](https://github.com/mborgerding/kissfft).
  *
  */
  