Opened 5 years ago

Last modified 5 years ago

## #23328 new defect

# Undefined limit product $INF * $ZEROB in lim-times

Reported by: | Peleg Michaeli | Owned by: | |
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Priority: | major | Milestone: | sage-8.0 |

Component: | calculus | Keywords: | limit, maxima |

Cc: | Merged in: | ||

Authors: | Reviewers: | ||

Report Upstream: | Reported upstream. No feedback yet. | Work issues: | |

Branch: | Commit: | ||

Dependencies: | Stopgaps: |

### Description (last modified by )

Trying to calculate a limit of some (not too) complicated function brings some kind of console which reports some error/warning. Using `algorithm='sympy'`

is ok, so this is probably a `maxima`

issue.

sage: (x*(4/log(x))^(2*log(x)/log(log(x)))).limit(x=infinity) Condition of type: SIMPLE-CONDITION Undefined limit product $INF * $ZEROB in lim-times Available restarts: 1. (CONTINUE) Return from BREAK. Top level. > 0 sage: (x*(4/log(x))^(2*log(x)/log(log(x)))).limit(x=infinity, algorithm='sympy') 0

Tested in SageMath version 8.0.beta5, Release Date: 2017-05-04.

Upstream at https://sourceforge.net/p/maxima/bugs/3313/

### Change History (3)

### comment:1 Changed 5 years ago by

Description: | modified (diff) |
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### comment:2 Changed 5 years ago by

Description: | modified (diff) |
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Report Upstream: | N/A → Reported upstream. No feedback yet. |

### comment:3 Changed 5 years ago by

Description: | modified (diff) |
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**Note:**See TracTickets for help on using tickets.

Huh. Using

`sage -maxima`

:So this is an issue in Maxima for sure. Workaround is to set

`maxima("domain:real")`

, I guess.