The traversal tag has no wiki summary.
6
votes
1answer
76 views
Position with Except returns first item {0} and last item {}. Why?
Here is a simple list:
l={1, 0, 2, 1, 0, 1, 0, 1, 2, 0, 2, 0, 1, 0, 1, 0, 0}
To get the position of non-zero elements I use ...
11
votes
5answers
417 views
How to perform a depth-first preorder traversal of an expression?
Due to confusion of terminology on my part I asked the wrong question before.
Since it has already received other answers I shall not edit it, but instead ask the question I meant to in the first ...
14
votes
6answers
490 views
How to perform a breadth-first traversal of an expression?
Mathematica provides functions that perform a depth-first traversal on an expression, including: Map, MapAll, and ...
13
votes
3answers
336 views
Determining all possible traversals of a tree
I have a list:
B={423, {{53, {39, 65, 423}}, {66, {67, 81, 423}}, {424, {25, 40, 423}}}};
This list can be visualized as a tree using ...
