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I have latex equations within \[ ... \] commands. Some of them doesn't fit page width and they have newline command \\ inside. I tried to surround these equations with gather* environment which works good but I can't use this environment directly.

I just need to add support for multiline equations to \[ ... \] commands. Is this possible? Thanks.

closed as off-topic by David Carlisle, Andrew, Zarko, Henri Menke, Heiko Oberdiek Nov 2 '16 at 20:44

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    Why can't you use gather*? – Torbjørn T. Nov 20 '15 at 17:57
  • I can't use it directly because latex content isn't written by me. It's written for MathJax which supports multiline equations by default so authors of this latex content can write them simply using \[ and \]. – user3376620 Nov 20 '15 at 18:12
  • is it the case that you can't intervene manually at all? if so, that is very bad. (i think i need to learn more about how mathjax handles things like this ... it's not acceptable to require this kind of change to latex/amsmath.) – barbara beeton Nov 20 '15 at 18:28
  • mathjax can be configured to support the ams alignments without wrapping them in \[\] Putting them in math was required in early versions but was never tex syntax. – David Carlisle Nov 21 '15 at 0:20
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    I'm voting to close this question as off-topic because based on a misunderstanding of mathjax requirements (can use ams alignments as in tex) – David Carlisle Nov 2 '16 at 20:12