5.1 Bounce integrals
 5.2 Grid definitions
  5.2.1 Momentum space
  5.2.2 Configuration space
  5.2.3 Time grid definition
 5.3 Discretization procedure
  5.3.1 Zero order term: Fokker-Planck equation
  5.3.2 First order term: Drift kinetic equation
 5.4 Zero order term: the Fokker-Planck equation
  5.4.1 Momentum dynamics
  5.4.2 Spatial dynamics
  5.4.3 Grid interpolation
  5.4.4 Discrete description of physical processes
  5.4.5 Collisions
  5.4.6 Ohmic electric field
 5.5 Up to first order term: the Drift Kinetic equation
  5.5.1 Grid interpolation
  5.5.2 Momentum dynamics
  5.5.3 Discrete description of physical processes
 5.6 Initial solution
  5.6.1 Zero order term: the Fokker-Planck equation
  5.6.2 Up to first order term: the Drift Kinetic equation
 5.7 Boundary conditions
  5.7.1 Zero order term: the Fokker-Planck equation
  5.7.2 Up to first order term: the Drift Kinetic equation
 5.8 Moments of the Distribution Function
  5.8.1 Flux discretization for moment calculations
  5.8.2 Numerical integrals for moment calculations