Options: simple class for analysing command line options
This class recognizes the following model:
-xyZ012 param1 -lv param2=val2 -X param3 param4=val4 ...
Basic class for Coordinate fields
This includes Coordinates, proper motions, parallaxes and radial velocity
For the moment, this class keeps the data in String format
Pour chaque ligne de l'intervalle specifie par start et end, la hauteur
est positionnee en fonction de la hauteur ideale de la plus haute cellule
dans cette ligne.
Compute the Product of 2 units representing physical units
The difference with "mult" exists only for log scales or magnitudes:
the resulting value corresponds to a physical product
whereas the "mult" corresponds to an arithmetic multiplication.