Incidence matrix according to Dynkin symbol

reduced( ox xo4/2xx&#x , by x.4/2x. )   → height = 1/sqrt(2) = 0.707107
(pseudo {4} || {4/2}-prism )

         o. o.4/2o.      | 4 * | 2  4 0 0 | 2 4 4 0 | 2 2 2
         .o .o4/2.o      | * 8 | 0  2 1 1 | 2 1 2 1 | 1 2 1
-------------------------+-----+----------+---------+------
reduced( .. x.   ..  & ) | 2 0 | 4  * * * | 0 2 2 0 | 1 1 2
         oo oo4/2oo&#x   | 1 1 | * 16 * * | 1 1 1 0 | 1 1 1
         .x ..   ..      | 0 2 | *  * 4 * | 2 0 0 1 | 1 2 0
         .. ..   .x      | 0 2 | *  * * 4 | 0 0 2 1 | 0 2 1
-------------------------+-----+----------+---------+------
         ox ..   ..&#x   | 1 2 | 0  2 1 0 | 8 * * * | 1 1 0
         .. xo   ..&#x   | 2 1 | 1  2 0 0 | * 8 * * | 1 0 1
         .. ..   xx&#x   | 2 2 | 1  2 0 1 | * * 8 * | 0 1 1
         .x ..   .x      | 0 4 | 0  0 2 2 | * * * 2 | 0 2 0
-------------------------+-----+----------+---------+------
         ox xo   ..&#x   ♦ 2 2 | 1  4 1 0 | 2 2 0 0 | 4 * *
         ox ..   xx&#x   ♦ 2 4 | 1  4 2 2 | 2 0 2 1 | * 4 *
reduced( .. xo4/2xx&#x ) ♦ 4 4 | 4  8 0 2 | 0 4 4 0 | * * 2