Opened 10 years ago
Closed 5 years ago
#10049 closed enhancement (fixed)
improve documentation of substitute for symbolic expressions
| Reported by: | burcin | Owned by: | mvngu |
|---|---|---|---|
| Priority: | minor | Milestone: | sage-duplicate/invalid/wontfix |
| Component: | documentation | Keywords: | |
| Cc: | jpflori, kcrisman | Merged in: | |
| Authors: | Reviewers: | Marc Mezzarobba | |
| Report Upstream: | N/A | Work issues: | |
| Branch: | Commit: | ||
| Dependencies: | Stopgaps: |
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Description
The following behavior can be confusing:
sage: var('x,y,z')
(x, y, z)
sage: t = x+y+z
sage: t.subs({x+y:5})
x + y + z
The match() function for symbolic expressions already provides a link to the relevant part of the GiNaC tutorial:
http://www.ginac.de/tutorial/Pattern-matching-and-advanced-substitutions.html
Perhaps the substitute() function should do this too.
Reported by Jean-Pierre Flori on sage-devel:
http://groups.google.com/group/sage-devel/t/897b14e456ac077f
See also #10048 which is relevant to that thread.
Change History (9)
comment:1 Changed 8 years ago by
- Cc kcrisman added
comment:2 Changed 8 years ago by
- Milestone changed from sage-5.11 to sage-5.12
comment:3 Changed 7 years ago by
- Milestone changed from sage-6.1 to sage-6.2
comment:4 Changed 7 years ago by
- Milestone changed from sage-6.2 to sage-6.3
comment:5 Changed 7 years ago by
- Milestone changed from sage-6.3 to sage-6.4
comment:6 Changed 6 years ago by
- Component changed from symbolics to documentation
- Owner changed from burcin to mvngu
comment:7 Changed 6 years ago by
- Milestone changed from sage-6.4 to sage-duplicate/invalid/wontfix
- Reviewers set to Marc Mezzarobba
- Status changed from new to needs_review
comment:8 Changed 6 years ago by
- Status changed from needs_review to positive_review
comment:9 Changed 5 years ago by
- Resolution set to fixed
- Status changed from positive_review to closed
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Done in #12834; see also #18396.