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For example, when I use LinearSolve, an error message might be encountered:

LinearSolve::luc: Result for LinearSolve of badly conditioned matrix `1` may contain significant numerical errors.

where `1` is to be filled with the detailed badly-conditioined matrix.

The problem is that when that matrix is very big, then a very large error file will be generated. So is it possible to suppress the latter part and just keep the error name LinearSolve::luc printed out?

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  • 1
    $\begingroup$ Related: (1512), (20367) $\endgroup$
    – Michael E2
    Aug 22 '20 at 13:45
  • $\begingroup$ @Αλέξανδρος 我想问一下:你是哪个学校的,看你积分这么高,是川大的吗? $\endgroup$ Sep 14 '20 at 7:39
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<< GeneralUtilities`

WithMessageHandler[
 1/0, Print@#["MessageTemplate"] &
]

enter image description here

Does it fit your needs?

Keep in mind that with this handler the message isn't a message anymore so you can't Check it etc.

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  • $\begingroup$ Not only "you can't Check it," but internal built-in code can't either, right? (I've never used WithMessageHandler, except to play with.) $\endgroup$
    – Michael E2
    Aug 22 '20 at 13:34
  • $\begingroup$ Wait: WithMessageHandler[ Check[1/0, "Fudge!"], Print@#["MessageTemplate"] &] seems to work fine. $\endgroup$
    – Michael E2
    Aug 22 '20 at 13:44

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