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How to manipulate expressions structurally, not necessarily complying with the rules of algebra.
2
votes
1
answer
43
views
Problem with recursive relations
Continuing the topic of my previous questions (link1 and link2), let me ask one more question.
I have problems with the following code:
ClearAll["Global`*"]
SetAttributes[R, HoldAll]
SetAttributes[P …
3
votes
3
answers
121
views
Symbolic nest expressions
I'm trying to understand how to use symbolic expressions as arguments. The following example represents my problem:
Q[f_, s0_] := Q[f, s0] = D[f[s0], s0]
Q[Q[f, s0], s0]
where Q is simply first de …