Opened 11 years ago
Last modified 4 years ago
#9874 new defect
add a function for the derivative of ceil and floor
Reported by: | burcin | Owned by: | burcin |
---|---|---|---|
Priority: | major | Milestone: | sage-6.8 |
Component: | symbolics | Keywords: | sd35.5 |
Cc: | ktkohl, rws, kcrisman, pelegm | Merged in: | |
Authors: | Karen Kohl | Reviewers: | |
Report Upstream: | N/A | Work issues: | |
Branch: | u/ktkohl/add_a_function_for_the_derivative_of_ceil_and_floor (Commits, GitHub, GitLab) | Commit: | 8013b9f89b3670847007f6d3560252035a899638 |
Dependencies: | Stopgaps: |
Description
We should define a new symbolic function for the derivative of ceil
or floor
.
In Maple:
> diff(floor(x),x); floor(1, x) > diff(floor(x),x,x); floor(1, x) > diff(ceil(x),x,x); floor(1, x) > eval(diff(ceil(x),x,x),x=1.5); 0 > eval(diff(ceil(x),x,x),x=0); Error, (in floor) floor is not differentiable at integers
Change History (12)
comment:1 Changed 9 years ago by
- Cc ktkohl added
- Keywords sd35.5 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
comment:7 Changed 6 years ago by
- Branch set to u/ktkohl/add_a_function_for_the_derivative_of_ceil_and_floor
comment:8 Changed 6 years ago by
- Commit set to 8013b9f89b3670847007f6d3560252035a899638
comment:9 Changed 6 years ago by
comment:10 Changed 6 years ago by
- Cc rws kcrisman added
comment:11 Changed 6 years ago by
- Milestone changed from sage-6.4 to sage-6.8
Just a quick note that there are empty examples and tests fields but you probably know that.
comment:12 Changed 4 years ago by
- Cc pelegm added
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These give the right answer but also a runtime error:
New commits:
Added ceiling and floor functions to allow 2nd argument for derivative.