hi my friends, i want ask how can do it this :

1st tree with 4 branches of vectors

2nd tree with 3 value of 4 branches to multiply with magnitude of each bunch vectors… what i mean that :

branch {0}of 1st tree is for 1st curve with 3 its vectors , i need to multiply this magnitude with 4 groups of 3 values to get 4 different groups of 1st group of vectors.

but how can do it for branches of 1st tree at once :

1st tree : B1 / B2 / B3 / B4

2nd tree : B’1 / B’2 / B’3 / B’4

the target one list :

{0;0}B1 * B’1 / {0;1}B1 *B’2 / {0;2}B1 *B’3 / {0;3}B1 *B’4

{1;0}B2 * B’1 / {1;1}B2 *B’2 / {1;2}B2 *B’3 / {1;3}B2 *B’4

{2;0}B3 * B’1 / {2;1}B3 *B’2 / {2;2}B3 *B’3 / {2;3}B3 *B’4

{3;0}B4 * B’1 / {3;1}B4 *B’2 / {3;2}B4 *B’3 / {3;3}B4 *B’4