The LaTeX command for xrightarrow (→) is \xrightarrow{f} (labeled right arrow).
\xrightarrow{f}Writing a paper? The table generator and the BibTeX cleaner are one click away, no account.
Write \xrightarrow{f} inside math mode, that is between $…$ for inline math or in a \[ … \] or equation block for display math. This symbol needs the amsmath package, so add \usepackage{amsmath} to your preamble.
Arrows are relations in LaTeX, so \xrightarrow{f} gets the same thick spacing as an equals sign. With unicode-math under XeLaTeX or LuaLaTeX, typing → in a formula gives the same symbol.
$A \xrightarrow{f} B$Open this example in the live preview: it renders as you type, with no compiler and no signup.
\rightharpoonup\rightharpoondown\leftrightharpoons\rightleftharpoons\dashrightarrow\circlearrowleft\circlearrowright\xleftarrow{f}\longrightarrow\longleftarrow\Longrightarrow\to\leftarrow\rightarrowArrows in LaTeX: the full table or search all 350+ LaTeX symbols.
Use \xrightarrow{f} in math mode after adding \usepackage{amsmath} to your preamble. For example, $A \xrightarrow{f} B$.
It comes from the amsmath package: add \usepackage{amsmath} to your preamble.