k-regular sequences: subsequences, forward/backward difference, partial sums

[dkrenn]

Implement subsequences and forward/backward differences and partial sums.

See also meta ticket #21202

Depends on #21318

CC: @galipnik

Component: combinatorics

Author: Daniel Krenn, Clemens Heuberger

Branch/Commit: 7bc6722

Reviewer: Clemens Heuberger, Daniel Krenn

Issue created by migration from https://trac.sagemath.org/ticket/21325

[dkrenn]

Branch: u/dkrenn/sequences/k-regular-subseq

[dkrenn]

Description changed:

--- 
+++ 
@@ -1 +1,3 @@
-Implement subsequences and forward/backward differences
+Implement subsequences and forward/backward differences.
+
+See also meta ticket #21202

[dkrenn]

Last 10 new commits:

d8a9173	doctesting rmul, lmul and one_hadamard
01495cb	extend to negative shifts in subsequence
b76bf4e	factor out subsequence to separat ticket
a4e4bd5	subsequence
26842f4	missing_value=0
41bc288	quasi-cherry-pick of pad_right of k-regular-guess branch
3023233	rewrite to make subsequence more efficient (dynamically add kernel)
51e7d72	minor rewrite
9311636	allow b to be a dict
624e6c0	forward/backward difference

[dkrenn]

Commit: 624e6c0

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

45d9e67	minor rewrites
c430158	partial sums
7eb93e1	minor rewrites to use existing stuff better

[sagetrac-git]

Changed commit from 624e6c0 to 7eb93e1

[sagetrac-git]

Changed commit from 7eb93e1 to 0f89159

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

5919120	doctesting all parameters in coefficient_of_word
c7243a6	Merge tag '7.4.beta1' into t/21295/sequences/recognizable
4012778	Merge branch 't/21295/sequences/recognizable' into t/21203/sequences/k-regular
5dbedab	fix doctests (experimental warning)
143ea73	fix building of docs (no idea why it failed)
6247a7f	Merge branch 't/21203/sequences/k-regular' into t/21318/sequences/rec-basic-arith
0f89159	Merge branch 't/21318/sequences/rec-basic-arith' into t/21325/sequences/k-regular-subseq

[dkrenn]

Description changed:

--- 
+++ 
@@ -1,3 +1,3 @@
-Implement subsequences and forward/backward differences.
+Implement subsequences and forward/backward differences and partial sums.
 
 See also meta ticket #21202