Opened 7 years ago
Closed 6 years ago
#644 closed defect (fixed)
[with patch] (sin + cos)(1) does not work
Reported by: | robertwb | Owned by: | mhansen |
---|---|---|---|
Priority: | major | Milestone: | sage-2.8.15 |
Component: | calculus | Keywords: | |
Cc: | Merged in: | ||
Authors: | Reviewers: | ||
Report Upstream: | Work issues: | ||
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description (last modified by was)
Both sin and cos are functions of one (undetermined) variable, and can be called, but when one performs arithmetic on them this changes.
Maybe there should be a CallableSymbolicExpressionRing? with an unnamed variable that coerces into any CallableSymbolicExpressionRing? with a specified variable name?
sage: f = sin sage: g = cos sage: f(1) sin(1) sage: g(1) cos(1) sage: h = f+g sage: h(1) sin + cos # should be sin(1)+cos(1) sage: f = 3*sin sage: f(1) 3*sin # should be 3*sin(1)
Attachments (1)
Change History (7)
comment:1 Changed 7 years ago by robertwb
comment:2 Changed 7 years ago by was
- Description modified (diff)
- Milestone set to sage-2.9
comment:3 Changed 7 years ago by robertwb
Also should have
sage: f(x) = x^2 sage: f + sin x |--> sin(x) + x^2
comment:4 Changed 7 years ago by robertwb
See much discussion at http://groups.google.com/group/sage-devel/browse_thread/thread/2f627fbe8d0f71c0
comment:5 Changed 6 years ago by mhansen
- Milestone changed from sage-2.9.1 to sage-2.8.15
- Owner changed from was to mhansen
- Status changed from new to assigned
- Summary changed from (sin + cos)(1) does not work to [with patch] (sin + cos)(1) does not work
This patch should be applied after #644.
Changed 6 years ago by mhansen
comment:6 Changed 6 years ago by mabshoff
- Resolution set to fixed
- Status changed from assigned to closed
Merged in 2.8.15.alpha1.
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