# Large operators

Big operators, sidesets, and limit placement.

https://texform.dev/latex/topics/operators-limits

This topic has 5 commands from the ams and base packages. Commands show whether MathJax, KaTeX, and XeTeX render them. Entries are ordered by how often they appear in corpus formulas.

Packages: ams (3), base (2).

| Name | Kind | Definition | Packages | MathJax | KaTeX | XeTeX | Frequency |
| --- | --- | --- | --- | --- | --- | --- | --- |
| [\\limits](https://texform.dev/latex/commands/limits) | command | Used after large operators such as \sum or \lim to force limits-style placement of following subscripts and superscripts above/below the operator. | base | full | full | full | 1.93% |
| [\\substack](https://texform.dev/latex/commands/substack) | command | Stacking short expressions on multiple lines, typically inside subscripts, superscripts, or under limit operators. | ams | full | full | full | 0.62% |
| [\\nolimits](https://texform.dev/latex/commands/nolimits) | command | Used after operators such as \sum or \int to force ordinary subscript/superscript placement instead of above/below limits placement. | base | full | full | full | 0.31% |
| [\\sideset](https://texform.dev/latex/commands/sideset) | command | Adding prescripts and postscripts to large operators while preserving correct spacing and centering. | ams | full | none | full | 0.02% |
| [\\idotsint](https://texform.dev/latex/commands/idotsint) | command | Used for ellipsis-style multiple integrals in AMS math notation, especially when writing iterated or higher-dimensional integrals with omitted intermediate integral signs. | ams | full | none | full | <0.01% |