# Physics: functions

Physics-package named functions that are not in base.

https://texform.dev/latex/topics/physics-functions

This topic has 17 commands from the physics package. Commands show whether MathJax, KaTeX, and XeTeX render them. Entries are ordered by how often they appear in corpus formulas.

| Name | Kind | Definition | Packages | MathJax | KaTeX | XeTeX | Frequency |
| --- | --- | --- | --- | --- | --- | --- | --- |
| [\\acos](https://texform.dev/latex/commands/acos) | command | Used for inverse cosine notation written as acos, including optional bracketed powers in the physics package. | physics | full | none | full | — |
| [\\acot](https://texform.dev/latex/commands/acot) | command | Used for inverse cotangent notation written as acot, including optional bracketed powers in the physics package. | physics | full | none | full | — |
| [\\acsc](https://texform.dev/latex/commands/acsc) | command | Used for inverse cosecant notation written as acsc, including optional bracketed powers in the physics package. | physics | full | none | full | — |
| [\\arccot](https://texform.dev/latex/commands/arccot) | command | Used for inverse cotangent notation written as arccot, with optional bracketed powers in the physics package. | physics | full | none | full | — |
| [\\arccsc](https://texform.dev/latex/commands/arccsc) | command | Used for inverse cosecant notation written as arccsc, with optional bracketed powers in the physics package. | physics | full | none | full | — |
| [\\arcsec](https://texform.dev/latex/commands/arcsec) | command | Used for inverse secant notation written as arcsec, with optional bracketed powers in the physics package. | physics | full | none | full | — |
| [\\asec](https://texform.dev/latex/commands/asec) | command | Used for inverse secant notation written as asec, including optional bracketed powers in the physics package. | physics | full | none | full | — |
| [\\asin](https://texform.dev/latex/commands/asin) | command | Used for inverse sine notation written as asin, including optional bracketed powers in the physics package. | physics | full | none | full | — |
| [\\atan](https://texform.dev/latex/commands/atan) | command | Used for inverse tangent notation written as atan, including optional bracketed powers in the physics package. | physics | full | none | full | — |
| [\\csch](https://texform.dev/latex/commands/csch) | command | Used for hyperbolic cosecant notation, including bracketed powers such as \csch[2](x). | physics | full | none | full | — |
| [\\erf](https://texform.dev/latex/commands/erf) | command | Used for the error function, often as \erf x or \erf(x) in applied mathematics and physics writing. | physics | full | none | full | — |
| [\\Residue](https://texform.dev/latex/commands/Residue) | command | Used as a residue label in complex-analysis or contour-integration formulas | physics | full | none | full | — |
| [\\sech](https://texform.dev/latex/commands/sech) | command | Used for hyperbolic secant notation, including bracketed powers such as \sech[2](x). | physics | full | none | full | — |
| [\\tr](https://texform.dev/latex/commands/tr) | command | Used for matrix trace notation in the short lowercase form, as in \tr A or \tr(A). | physics | full | none | full | — |
| [\\Tr](https://texform.dev/latex/commands/Tr) | command | Used for matrix trace notation in the capitalized form, as in \Tr A or \Tr(A). | physics | full | none | full | — |
| [\\trace](https://texform.dev/latex/commands/trace) | command | Used for trace function in linear algebra expressions | physics | full | none | full | — |
| [\\Trace](https://texform.dev/latex/commands/Trace) | command | Used for trace function in linear algebra expressions | physics | full | none | full | — |