Incidence matrix according to Dynkin symbol

x3o x3o3x3o

. . . . . . | 90 |  2  2   4 |  1  4   8  1  4  2  2 |  2  4  2  8  4  4  2  2  1 |  1  4  2  2  4  4  2 1 | 2  2 1 2
------------+----+-----------+-----------------------+----------------------------+------------------------+---------
x . . . . . |  2 | 90  *   * |  1  2   4  0  0  0  0 |  2  4  1  4  2  2  0  0  0 |  1  4  2  2  2  2  1 0 | 2  2 1 1
. . x . . . |  2 |  * 90   * |  0  2   0  1  2  0  0 |  1  0  2  4  0  0  2  1  0 |  1  2  0  0  4  2  0 1 | 2  1 0 2
. . . . x . |  2 |  *  * 180 |  0  0   2  0  1  1  1 |  0  1  0  2  2  2  1  1  1 |  0  1  1  1  2  2  2 1 | 1  1 1 2
------------+----+-----------+-----------------------+----------------------------+------------------------+---------
x3o . . . . |  3 |  3  0   0 | 30  *   *  *  *  *  * |  2  4  0  0  0  0  0  0  0 |  1  4  2  2  0  0  0 0 | 2  2 1 0
x . x . . . |  4 |  2  2   0 |  * 90   *  *  *  *  * |  1  0  1  2  0  0  0  0  0 |  1  2  0  0  2  1  0 0 | 2  1 0 1
x . . . x . |  4 |  2  0   2 |  *  * 180  *  *  *  * |  0  1  0  1  1  1  0  0  0 |  0  1  1  1  1  1  1 0 | 1  1 1 1
. . x3o . . |  3 |  0  3   0 |  *  *   * 30  *  *  * |  0  0  2  0  0  0  2  0  0 |  1  0  0  0  4  0  0 1 | 2  0 0 2
. . x . x . |  4 |  0  2   2 |  *  *   *  * 90  *  * |  0  0  0  2  0  0  1  1  0 |  0  1  0  0  2  2  0 1 | 1  1 0 2
. . . o3x . |  3 |  0  0   3 |  *  *   *  *  * 60  * |  0  0  0  0  2  0  1  0  1 |  0  0  1  0  2  0  2 1 | 1  0 1 2
. . . . x3o |  3 |  0  0   3 |  *  *   *  *  *  * 60 |  0  0  0  0  0  2  0  1  1 |  0  0  0  1  0  2  2 1 | 0  1 1 2
------------+----+-----------+-----------------------+----------------------------+------------------------+---------
x3o x . . . ♦  6 |  6  3   0 |  2  3   0  0  0  0  0 | 30  *  *  *  *  *  *  *  * |  1  2  0  0  0  0  0 0 | 2  1 0 0
x3o . . x . ♦  6 |  6  0   3 |  2  0   3  0  0  0  0 |  * 60  *  *  *  *  *  *  * |  0  1  1  1  0  0  0 0 | 1  1 1 0
x . x3o . . ♦  6 |  3  6   0 |  0  3   0  2  0  0  0 |  *  * 30  *  *  *  *  *  * |  1  0  0  0  2  0  0 0 | 2  0 0 1
x . x . x . ♦  8 |  4  4   4 |  0  2   2  0  2  0  0 |  *  *  * 90  *  *  *  *  * |  0  1  0  0  1  1  0 0 | 1  1 0 1
x . . o3x . ♦  6 |  3  0   6 |  0  0   3  0  0  2  0 |  *  *  *  * 60  *  *  *  * |  0  0  1  0  1  0  1 0 | 1  0 1 1
x . . . x3o ♦  6 |  3  0   6 |  0  0   3  0  0  0  2 |  *  *  *  *  * 60  *  *  * |  0  0  0  1  0  1  1 0 | 0  1 1 1
. . x3o3x . ♦ 12 |  0 12  12 |  0  0   0  4  6  4  0 |  *  *  *  *  *  * 15  *  * |  0  0  0  0  2  0  0 1 | 1  0 0 2
. . x . x3o ♦  6 |  0  3   6 |  0  0   0  0  3  0  2 |  *  *  *  *  *  *  * 30  * |  0  0  0  0  0  2  0 1 | 0  1 0 2
. . . o3x3o ♦  6 |  0  0  12 |  0  0   0  0  0  4  4 |  *  *  *  *  *  *  *  * 15 |  0  0  0  0  0  0  2 1 | 0  0 1 2
------------+----+-----------+-----------------------+----------------------------+------------------------+---------
x3o x3o . . ♦  9 |  9  9   0 |  3  9   0  3  0  0  0 |  3  0  3  0  0  0  0  0  0 | 10  *  *  *  *  *  * * | 2  0 0 0
x3o x . x . ♦ 12 | 12  6   6 |  4  6   6  0  3  0  0 |  2  2  0  3  0  0  0  0  0 |  * 30  *  *  *  *  * * | 1  1 0 0
x3o . o3x . ♦  9 |  9  0   9 |  3  0   9  0  0  3  0 |  0  3  0  0  3  0  0  0  0 |  *  * 20  *  *  *  * * | 1  0 1 0
x3o . . x3o ♦  9 |  9  0   9 |  3  0   9  0  0  0  3 |  0  3  0  0  0  3  0  0  0 |  *  *  * 20  *  *  * * | 0  1 1 0
x . x3o3x . ♦ 24 | 12 24  24 |  0 12  12  8 12  8  0 |  0  0  4  6  4  0  2  0  0 |  *  *  *  * 15  *  * * | 1  0 0 1
x . x . x3o ♦ 12 |  6  6  12 |  0  3   6  0  6  0  4 |  0  0  0  3  0  2  0  2  0 |  *  *  *  *  * 30  * * | 0  1 0 1
x . . o3x3o ♦ 12 |  6  0  24 |  0  0  12  0  0  8  8 |  0  0  0  0  4  4  0  0  2 |  *  *  *  *  *  * 15 * | 0  0 1 1
. . x3o3x3o ♦ 30 |  0 30  60 |  0  0   0 10 30 20 20 |  0  0  0  0  0  0  5 10  5 |  *  *  *  *  *  *  * 3 | 0  0 0 2
------------+----+-----------+-----------------------+----------------------------+------------------------+---------
x3o x3o3x . ♦ 36 | 36 36  36 | 12 36  36 12 18 12  0 | 12 12 12 18 12  0  3  0  0 |  4  6  4  0  3  0  0 0 | 5  * * *
x3o x . x3o ♦ 18 | 18  9  18 |  6  9  18  0  9  0  6 |  3  6  0  9  0  6  0  3  0 |  0  3  0  2  0  3  0 0 | * 10 * *
x3o . o3x3o ♦ 18 | 18  0  36 |  6  0  36  0  0 12 12 |  0 12  0  0 12 12  0  0  3 |  0  0  4  4  0  0  3 0 | *  * 5 *
x . x3o3x3o ♦ 60 | 30 60 120 |  0 30  60 20 60 40 40 |  0  0 10 30 20 20 10 20 10 |  0  0  0  0  5 10  5 2 | *  * * 3