Fonts and styles\frak

\frakCommand

Used to typeset symbols in Fraktur style, often for ideals, Lie algebras, or specialized notation.

\frak x
Available in
base, textmacros
Kind
prefix
Allowed mode
math, text
Frequency
0.07% of corpus formulasrank 121 of 263
Commonality
low
Tags
presentation
Renderer support
PackageMathJaxKaTeXXeTeX
baseMathJax: FullKaTeX: FullXeTeX: None
textmacrosMathJax: FullKaTeX: NoneXeTeX: None
About the test scope

Syntax#

\frakm{a}math content

Argspec m — one mandatory argument. In base. Reading argspecs

\frakm:T{a}text content

Argspec m:T — one mandatory argument. In textmacros. Reading argspecs

Examples#

textmacros

\text{\frak{abc}}

Package variants#

PackageSignatureAllowed modeNotes
basemmathUsed to typeset symbols in Fraktur style, often for ideals, Lie algebras, or specialized notation.
textmacrosm:TtextLegacy text-mode macro for styling a text argument in Fraktur; used for short stylized text fragments inside text contexts such as \text{...}.

In TeXForm#

TeXForm parses this entry as prefix syntax; the package determines its argument specification.

Equivalent forms#

  • \mathfrak{#1}exact

    MathJax maps both commands to the same MathFont variant.

See also#

Test cases#

base
InputCaseMathJaxKaTeXXeTeX
\frak{a}Positive · baselinePassPassFail
\frak aPositive · bare[0]PassPassFail
textmacros
InputCaseMathJaxKaTeXXeTeX
\frak{a}Positive · baselinePassFailFail
\frak aPositive · bare[0]PassFailFail
\frak{a^2}Negative · neg:T[0]FailFailFail
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