Incidence matrix according to Dynkin symbol

reduced( ox5/4xx5/3xx&#x by x5/4x )   → height = (sqrt(5)-1)/4 = 0.309017
(quit sissid || gird)

         o.5/4o.5/3o.        | 60  * |  2  1   2  0  0 |  1  2  1  2  2  0  0 | 1  1  1  2 0
         .o5/4.o5/3.o        |  * 60 |  0  0   2  2  2 |  0  0  2  2  2  2  2 | 0  1  2  2 1
-----------------------------+-------+-----------------+----------------------+-------------
         ..   x.   ..        |  2  0 | 60  *   *  *  * |  1  1  0  1  0  0  0 | 1  1  0  1 0
         ..   ..   x.        |  2  0 |  * 30   *  *  * |  0  2  0  0  2  0  0 | 1  0  1  2 0
         oo5/4oo5/3oo&#x     |  1  1 |  *  * 120  *  * |  0  0  1  1  1  0  0 | 0  1  1  1 0
reduced( .x   ..   ..    & ) |  0  2 |  *  *   * 60  * |  0  0  1  1  0  1  1 | 0  1  1  1 1
         ..   ..   .x        |  0  2 |  *  *   *  * 60 |  0  0  0  0  1  1  1 | 0  0  1  1 1
-----------------------------+-------+-----------------+----------------------+-------------
         o.5/4x.   ..        |  5  0 |  5  0   0  0  0 | 12  *  *  *  *  *  * | 1  1  0  0 0  {5}
         ..   x.5/3x.        | 10  0 |  5  5   0  0  0 |  * 12  *  *  *  *  * | 1  0  0  1 0  {10/3}
         ox   ..   ..&#x     |  1  2 |  0  0   2  1  0 |  *  * 60  *  *  *  * | 0  1  1  0 0
         ..   xx   ..&#x     |  2  2 |  1  0   2  1  0 |  *  *  * 60  *  *  * | 0  1  0  1 0
         ..   ..   xx&#x     |  2  2 |  0  1   2  0  1 |  *  *  *  * 60  *  * | 0  0  1  1 0
         .x   ..   .x        |  0  4 |  0  0   0  2  2 |  *  *  *  *  * 30  * | 0  0  1  0 1
         ..   .x5/3.x        |  0 10 |  0  0   0  5  5 |  *  *  *  *  *  * 12 | 0  0  0  1 1  {10/3}
-----------------------------+-------+-----------------+----------------------+-------------
         o.5/4x.5/3x.        ♦ 60  0 | 60 30   0  0  0 | 12 12  0  0  0  0  0 | 1  *  *  * *
reduced( ox5/4xx   ..&#x   ) ♦  5  5 |  5  0  10  5  0 |  1  0  5  5  0  0  0 | * 12  *  * *
         ox   ..   xx&#x     ♦  2  4 |  0  1   4  2  2 |  0  0  2  0  2  1  0 | *  * 30  * *
         ..   xx5/3xx&#x     ♦ 10 10 |  5  5  10  5  5 |  0  1  0  5  5  0  1 | *  *  * 12 *
reduced( .x5/4.x5/3.x      ) ♦  0 60 |  0  0   0 60 60 |  0  0  0  0  0 30 12 | *  *  *  * 1