| Parameters | Short description |
| t | given time |
|
| position of the starting point of a ballistic trajectory of the diverging particle |
|
| position of the ending point of a ballistic trajectory of the diverging particle |
|
| time of positioning the ending point of the diverging particle |
|
| mass flow velocity in point |
|
| the thermal velocity of a diverging particle in point |
|
| the velocity vector of the diverging particle at the time of positioning in point |
|
| probability of free path traveling along the ballistic trajectory starting at time t and ending at time |
|
| property content carried by the diverging particle at the time |