Opened 3 years ago
Last modified 21 months ago
#21655 new enhancement
Return (d/dn)f with f(n,x).diff(n) instead of runtime error
Reported by: | rws | Owned by: | |
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Priority: | major | Milestone: | sage-7.4 |
Component: | symbolics | Keywords: | |
Cc: | Merged in: | ||
Authors: | Reviewers: | ||
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description
Expected behaviour:
sage: hermite(n,x).diff(n) diff(hermite(n, x), n)
for all cases where we throw runtime or not implemented errors at the moment. This concerns mostly orthogonal poly functions. The aim is a better workflow for the user, with no interrupts.
Change History (3)
comment:1 Changed 3 years ago by
comment:2 Changed 3 years ago by
The runtime errors are partly thrown in Pynac, they should return fderivative
instead like is done with anonymous functions:
sage: f=function('f')(x) sage: diff(f,x) diff(f(x), x) sage: _._dbgprinttree() fderivative f @0x3dc6b00, hash=0x1023d72de5409a, flags=0xb, nops=1, params=0 x (symbol) @0x3049d20, serial=5, hash=0xf0a9622e, flags=0xf, domain=0, iflags=0000000000000000 =====
The others are errors thrown in Python. I'm not sure which will be simple to change.
comment:3 Changed 21 months ago by
May depend on #24861.
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Do you have an idea about what needs to be done in case someone decides to work on this? Ie, some tips about how to start?