Changes between Version 8 and Version 13 of Ticket #17701


Ignore:
Timestamp:
11/06/16 16:12:29 (3 years ago)
Author:
rws
Comment:

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  • Ticket #17701

    • Property Status changed from needs_review to needs_work
    • Property Reviewers changed from to Travis Scrimshaw
    • Property Milestone changed from sage-6.8 to sage-7.2
  • Ticket #17701 – Description

    v8 v13  
    11{{{
    2 t = var('t')
    3 sage: f = function('f')
     2sage: t = var('t')
     3sage: sage: f = function('f')(t)
     4sage: diff(f,x,x)
     50
    46sage: desolve(diff(f,t) - (f+1)/(t+1), f)
     7(_C - 1/(t + 1))*(t + 1)
     8
     9sage: sage: f = function('f')
     10sage: diff(f,t)
    511...
    6 TypeError:
     12TypeError: unable to convert f to a symbolic expression
     13sage: diff(sin,t)
     14...
     15TypeError: unable to convert f to a symbolic expression
    716}}}
    817The 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`.