Changes between Version 10 and Version 12 of Ticket #26060


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Timestamp:
Sep 16, 2020, 1:47:46 AM (2 years ago)
Author:
Samuel Lelièvre
Comment:

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  • Ticket #26060

    • Property Milestone changed from sage-duplicate/invalid/wontfix to sage-9.2
  • Ticket #26060 – Description

    v10 v12  
    11Up to Sage 8.7 this limit returns "und" for "undefined":
    22{{{#!python
    3 sage: limit(x / (x+2^x+cos(x)), x=-infinity)
     3sage: limit(x / (x + 2^x + cos(x)), x=-infinity)
    44und
    55}}}
     
    88!SymPy returns the correct result:
    99{{{#!python
    10 sage: (x / (x+2^x+cos(x))).limit(x=-infinity, algorithm='sympy')
     10sage: limit(x / (x+2^x + cos(x)), x=-infinity, algorithm='sympy')
    11111
    1212}}}
     
    1616fixed there
    1717by [https://sourceforge.net/p/maxima/code/ci/0c5c0187338060761746fbd0821ce5f28b3245cd/ Maxima commit 0c5c018]
    18 on 2018-08-30, and the fix is included
     18on 2018-08-30, fix included
    1919in [https://sourceforge.net/p/maxima/code/ci/master/tree/ChangeLog-5.42.md Maxima 5.42.2]
    20 to which we upgraded in #26625, merged in Sage 8.8.beta7.
     20to which we upgrade in #26625, merged in Sage 8.8.beta7.
    2121
    2222In Sage >= 8.8 we get the correct value for this limit:
    2323{{{#!python
    24 sage: limit(x / (x+2^x+cos(x)), x=-infinity)
     24sage: limit(x / (x + 2^x + cos(x)), x=-infinity)
    25251
    2626}}}