What's the difference between \DeclareMathOperator and \mathop?

Asked Jan 07 '17 at 02:46

Active Jan 07 '17 at 04:07

Viewed 3,228 times

Is there any difference between

\DeclareMathOperator{\erf}{erf}

and

\def{\erfc}{\mathop{\mathrm{erfc}}}

apart of the fact that \DeclareMathOperator is defined in amsmath package?

edited Jan 07 '17 at 04:07

asked Jan 07 '17 at 02:46

Igor Kotelnikov

I’m afraid I don’t understand: \mathop is a TeX primitive and does not define a new command/macro. In any case, note that \DeclareMathOperator defines robust commands, and that it has a *-form for managing the behavior of the newly defined operator wrt. “limits”. – GuM Jan 07 '17 at 02:54
1

Also, the "Related" is showing mathop shifts the baseline, DeclareMathOperator doesn't. – Teepeemm Jan 07 '17 at 02:56
@Teepeemm: Thank you for providing the reference to a very similar question. I have got enough reputation to vote to mark the question as a duplicate, as you suggest. – GuM Jan 07 '17 at 03:01

0 Answers0