[OS X TeX] \operatorname or \mathrm in multi-letter subscript labels

Victor Ivrii vivrii at gmail.com
Thu Jun 16 10:00:56 EDT 2011

On Thu, Jun 16, 2011 at 9:20 AM, Herbert Schulz <herbs at wideopenwest.com> wrote:
> On Jun 16, 2011, at 8:06 AM, Art Werschulz wrote:
>> Hi.
>> On Jun 15, 2011, at 10:13 PM, Victor Ivrii wrote:
>>>>> However not sure why you chose to use \operatorname .
>>>>> It is sufficient to use \mathrm or \text
>>>> Somehow I got into the habit of doing that a very long time ago.  Maybe this was in Spivak's "Joy of TeX"; I don't remember.
>>> \operatorname provides some extra spacing which does not seem suitable
>>> for labels
>> Compare $c_{\operatorname{in-out}}$ with $c_{\mathrm{in-out}}$.  The first gives a hyphen, the second gives what appears to be a minus sign.
>> Art Werschulz (8-{)}   "Metaphors be with you."  -- bumper sticker
>> GCS/M (GAT): d? -p+ c++ l u+(-) e--- m* s n+ h f g+ w+ t++ r- y?
>> Internet: agw STRUDEL comcast.net
> Howdy,
> That is a minus sign since you are still in math mode. Assuming you're using the amsmath package try $c_{\text{in-out}}$.

or $c_{\textrm{in-out}}$
or $c_{\textsf{in-out}}$
(which I prefer)

Victor Ivrii, Professor, Department of Mathematics, University of Toronto

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