Csdrhrt

I need an arrow like the following:

I tried

newcommand{wedgearrow}{mathrel{/}joinrelssearrow} %stmaryrd

but it doesn't work well.

No tikz...works across math styles.

documentclass{article}

usepackage{scalerel,stmaryrd}

newsaveboxwedgearrowbaseline

saveboxwedgearrowbaseline{$scalerel{%

  ooalign{kern.05pt/cr/}mkern-8.5mu}{ssearrow}$}

newcommand{wedgearrow}{mathrel{scalerel*{%

  usebox{wedgearrowbaseline}}{X}}} %stmaryrd

begin{document}

$Kwedgearrow L$



$scriptstyle Kwedgearrow L$



$scriptscriptstyle Kwedgearrow L$

end{document}

Similar to Ahrtaler's answer, the difference being that it also cooperates with subscripts (and all math styles) and becomes bold if one is in bold mode. I recommend this thread for further reading.

documentclass{article}

usepackage{tikz}

usepackage{amsmath}

makeatletter

DeclareRobustCommand{checkbold}[1]{% https://tex.stackexchange.com/a/24635/121799

 edef@tempa{math@version}edef@tempb{bold}%

 ifx@tempa@tempb%

  def#1{1}%

 else

  def#1{0}%

 fi}

makeatother 

tikzset{wedge arrow/.style={->,line cap=round,line join=round}}

newcommand{wedgearrow}{checkboldtmp%

ensuremath{mathrel{%

mathchoice{%

tikz[baseline=-0.1ex]{draw[line width={(1+0.33*tmp)*0.06em},wedge arrow](0,0) -- (60:0.6em) -- ++ (-60:0.6em);}

}{%

tikz[baseline=-0.1ex]{draw[line width={(1+0.33*tmp)*0.06em},wedge arrow](0,0) -- (60:0.6em) -- ++ (-60:0.6em);}

}{%

tikz[baseline=-0.075ex]{draw[line width={(1+0.33*tmp)*0.045em},wedge arrow](0,0) -- (60:0.45em) -- ++(-60:0.45em);}

}{%

tikz[baseline=-0.06ex]{draw[line width={(1+0.33*tmp)*0.035em},wedge arrow](0,0) -- (60:0.35em) -- ++ (-60:0.35em);}

}}}}

begin{document}

$Awedgearrow B_{Cwedgearrow D}$ {Large $Awedgearrow B_{Cwedgearrow D}$}



boldmath$Awedgearrow B_{Cwedgearrow D}$ {Large $Awedgearrow B_{Cwedgearrow D}$}

unboldmath

end{document}

EDITs:

1. added mathrel at Eclipse Sun's suggestion.


2. Made the macro detect the font weight, too, so the arrow goes bold in boldmath or boldsymbol, just like the standard arrows.


3. Added round line caps and joins, motivated by Joey's comment.

I think you could do something like that:

documentclass{scrartcl}



usepackage{tikz}



newlength{textsize}



makeatletter

setlength{textsize}{f@size pt}

makeatother



newcommand{wedgearrow}{%

    resizebox {!} {textsize} {

    begin{tikzpicture}

    draw[->, line width = 2pt] (0,0) -- (.5,1) -- (1,0);

    end{tikzpicture}}

}



begin{document}

    Hi this wedgearrow is a wedgearrow

end{document}

With mathpalette: the slash is resized to the same vertical size as the arrow, a bit widened for compensating the stroke width and vertically placed to fit.

Some manual adjustment is needed for getting the tops to meet.

documentclass{article}

usepackage{amsmath}

usepackage{stmaryrd}

usepackage{graphicx}



makeatletter

newcommand{wedgearrow}{mathrel{mathpalettewedge@arrowrelax}}

newcommand{wedge@arrow}[2]{%

  begingroup

  sboxz@{$m@th#1ssearrow$}%

  sboxtw@{resizebox{!}{dimexprhtz@+dpz@}{raisebox{depth}{$m@th#1/$}}}%

  raisebox{-dpz@}{scalebox{1.1}[1]{boxtw@}}% slash

  mathchoice{mkern-2.5mu}{mkern-2.5mu}{mkern-3mu}{mkern-3.5mu}%

  boxz@ % arrow

  endgroup

}

makeatother



begin{document}



$Kwedgearrow L_{Kwedgearrow L_{Kwedgearrow L}}$



{Huge$Kwedgearrow L$}



end{document}