Changes between Initial Version and Version 4 of Ticket #17701


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Timestamp:
07/09/15 14:09:46 (4 years ago)
Author:
rws
Comment:

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  • Ticket #17701

    • Property Milestone changed from sage-6.5 to sage-6.8
    • Property Summary changed from desolve TypeError snub to diff(f,t) should work even with Function objects
  • Ticket #17701 – Description

    initial v4  
    66TypeError:
    77}}}
    8 Don't know yet if it's a bug. At least it's an extremely uninformative error.
     8The same error can be had with the simple `SR(sin)`, i.e., any function object in contrast to the resp. function call, which returns an `Expression`.
     9
     10Since function objects can be used in other context it seems they should be part of symbolic expressions too. This ticket however will limit itself to giving a better error message in `SR.coerce` and handling `Function` objects in `calculus/functional.py:derivative()`.