Syntax#
\xleftarrowo[a]optional math contentm{b}math contentArgspec o m — one optional and one mandatory argument. Reading argspecs
Examples#
In TeXForm#
TeXForm parses this entry as prefix syntax; the package determines its argument specification.
Equivalent forms#
\overset{a}{\leftarrow}approximateThese approximate the annotated-arrow effect but do not reproduce the same stretching and spacing behavior as
\xleftarrow.\underset{b}{\overset{a}{\leftarrow}}approximateClose in intent for both labels, but stretching and spacing differ from the AMS construction.
See also#
\xrightarrowams
Test cases#
| Input | Case | MathJax | KaTeX | XeTeX |
|---|---|---|---|---|
\xleftarrow{a} | Positive · baseline | Pass | Pass | Pass |
\xleftarrow[a]{b} | Positive · vary:o[0] | Pass | Pass | Pass |
\xleftarrow a | Positive · bare[1] | Pass | Pass | Pass |
\to\rightarrow\longrightarrow\mapsto\xrightarrow\Rightarrow\Leftrightarrow\leftarrow\longmapsto\hookrightarrow\Longrightarrow\xleftarrow