The menu item “Interrupt Evaluation…” seems to have disappeared in Mathematica 10 on OS X.

Well, this is a bummer.

I personally use Mathematica for very long calculations, and I was using this function frequently to “pause” a calculation just the time to do another CPU-intensive task.

Any chance this can reappear in an update?

  • 2
    $\begingroup$ alt + , still works on v10 win 7 $\endgroup$
    – Coolwater
    Aug 29, 2014 at 13:58
  • $\begingroup$ The documentation claims it is still available even though it's no longer there. And the shortcut given Cmnd + , doesn't work either; that combination of keys brings up the Preferences dialog. A serious problem. $\endgroup$
    – m_goldberg
    Aug 29, 2014 at 16:03
  • 3
    $\begingroup$ I find that the easiest way doing calculations alongside a long running calculation is to open a new notebook, and use Evaluation / Notebook's Kernel to attach the new notebook to an alternate kernel. You set up alternate kernels by using Evaluation / Kernel Configuration Options. $\endgroup$ Aug 29, 2014 at 17:19
  • $\begingroup$ Maybe you can instead turn on Evaluation > Debugger and use the Halt and Continue buttons? $\endgroup$
    – Jens
    Aug 30, 2014 at 4:55

2 Answers 2


I forwarded this question to Wolfram technical support and have received a reply. I quote the relevant part (slightly edited for clarity).

The interruption of evaluation is intentionally removed [from the Evaluation menu in V10], but if you still would like to use it, you can use the keyboard combination: Option+Cmd+..

... filed a bug report for the [documentation] issue with Cmd+, with the development team.


Actually, although the menu entry is gone in version 10 on Mac OS X, I just tried the keyboard shortcut and it seems to work:

Pressing CommandOption. brings up the kernel interrupt popup menu, as it did in previous versions.

  • $\begingroup$ thank you. I know this keyboard shortcut but it does not work for me. $\endgroup$
    – coussin
    Aug 31, 2014 at 10:27

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