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I'm running Mathematica 11.0 (I should upgrade, I know) and it used to be that if I entered something like ?Integrate, Mathematica would output basically a mini version of the Integrate documentation page.

Then suddenly, it changed and the output is stuff like:

System`Integrate
Attributes[Integrate]={Protected,ReadProtected}

Options[Integrate]={Assumptions:>$Assumptions,GenerateConditions->Automatic,PrincipalValue->False}

Why did the use of ? change and how do I get it back to its original behavior?

Edit: Here is a screenshot of what I am seeing. enter image description here So, I am definitely using just a single question mark. I should also say that I'm using the xAct package in the notebook, so perhaps it's an issue with the package?

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  • $\begingroup$ Are you sure you're just typing ?? That output would be appropriate for ??. In general, what does Information[Integrate] give? $\endgroup$ – b3m2a1 Nov 2 '18 at 19:03
  • $\begingroup$ Thanks, but I was definitely using a single question mark; this is why I'm very confused. I'll have to check what Information[...] gives when I'm back at work on Monday. $\endgroup$ – user26866 Nov 3 '18 at 19:04
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    $\begingroup$ Maybe you just have to turn it off and on again. Seriously though: does restarting Mathematica help? $\endgroup$ – Szabolcs Nov 3 '18 at 20:32
  • $\begingroup$ I use Mathematica daily. It started doing this ~ a week ago and has continued consitently since (turning off and on the computer every day). A re-install could fix it though, for sure. I wasn't aware that Information[...] was the same as ?... so I'll just try that first on Monday. $\endgroup$ – user26866 Nov 3 '18 at 22:04
  • $\begingroup$ What is $Context? If it is not "Global`", find out when it changed from "Global`" to something else. $\endgroup$ – Carl Woll Nov 9 '18 at 19:58
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I believe you must have mistyped your input. Here are four ways you can currently get information on symbol in Mathematica.

image

Since Wolfram maintains that Information hasn't been modified since it first appeared in V1.0, what you see above should be the same as what you see in V.10 notebooks (providing the usage information or attributes on Integrate are the same).

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    $\begingroup$ Thanks, but I was definitely using a single question mark; this is why I'm very confused. I'll have to check what Information[...] gives when I'm back at work on Monday. $\endgroup$ – user26866 Nov 3 '18 at 19:03
  • $\begingroup$ See edit, please. $\endgroup$ – user26866 Nov 9 '18 at 19:47

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