# Putting limits *underneath* new operators

I'd like to declare a new math operator called the "strong limit" as follows:

\DeclareMathOperator{\slim}{s-lim}


So it's just "lim" (i.e., \lim), but with an "s-" in front. I want to be able to write things like \slim_{t\to \pm \infty}. And I can, and it compiles. However, it always puts the limit out to the right-hand side, never directly underneath the "s-lim" -- even when I try to use the \limits_{...} option. Is there any way to correct this?

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\DeclareMathOperator*{\slim}{s-lim}


This will put limits underneath in display math mode (not in text mode, but will obey to \limits).

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Incredible...that worked like a CHARM...thanks so much! What exactly does putting the asterisk there do BTW? –  Adam Jul 19 '11 at 16:35
Many LaTeX commands have a *-form that does slightly different things; in this case the command tells that the operator name should allow limits above and below in display math mode. –  egreg Jul 19 '11 at 16:38