^^Combinazioni; maschere.

                           +----------------------------------+
                           |           grandezza              |
                           +----------------+-----------------+
                           | piccola        | grande          |
-------------+-------------+----------------+-----------------+
grandezze    | forza       | fp             | fg              |
             +-------------+----------------+-----------------+
             | spostamento | sp             | sg              |
-------------+-------------+----------------+-----------------+

                       +----------------------------------+
                       |           condizioni             |
                       +----------------+-----------------+
                       | uguali         | diverse         |
-------------+---------+----------------+-----------------+
termometri   | uguali  | uguali-uguali  | uguali-diverse  |
             +---------+----------------+-----------------+
             | diversi | diversi-uguali | diversi-diverse |
-------------+--------------------------------------------- 

                     +-----------------------------+
                     |         velocita'           |
                     +---------+---------+---------+
                     | aument  | diminu  | sta     |
-----------+---------+---------+---------+---------+
grandezza  | aument  | aum-aum | aum-dim | aum-sta |
           +---------+---------+---------+---------+
           | diminu  | dim-aum | dim-dim | dim-sta |
-----------+---------+---------+---------+---------+
           | sta     | sta-aum | sta-dim | sta-sta |
-----------+---------+---------+---------+---------+