Bsrgvty

I'm new to LaTeX and I don't know how to use the CTAN package for typing APL symbols. So far I use the wasysym package but symbols like the ⍎ (down tack jot) are not included.

I have downloaded the apl CTAN package which is a directory of various files but I can't find instructions on how to use it in my LaTeX editor (TeXworks).

Please can you tell me how to use this package?

You can superimpose perp and circ.

documentclassarticle
usepackagewasysym

makeatletter
DeclareRobustCommandAPLdtj%
 begingroupm@th
 vphantom$perp$%
 ooalignhfilraisebox0.2ex$circ$hfilcr$perp$cr%
 endgroup

makeatother

begindocument

APLbox quad APLdtj quad APLcomment

enddocument

documentclassarticle
usepackagestackengine,scalerel
newcommanddtjotThisStyleensurestackMathstackenginedimexpr.6LMpt+.2ptrelax%
 SavedStyleperpSavedStylekern-.2ptkern.08ptcircOcFFL

begindocument
$dtjotquadscriptstyledtjotquadscriptscriptstyledtjot$
enddocument

If you want the circle smaller,

documentclassarticle
usepackagestackengine,scalerel,graphicx
newcommanddtjotThisStyleensurestackMathstackenginedimexpr1LMpt+.2ptrelax%
 SavedStyleperpscalebox.7$SavedStylekern-.18ptkern.08ptcirc$%
 OcFFL

begindocument
$dtjotquadscriptstyledtjotquadscriptscriptstyledtjot$
enddocument

As you just used the Unicode symbol ⍎, you’re aware of it. You can use that in LaTeX, too. Load the fontspec package, compile in LuaLaTeX or XeLaTeX, and you can paste it into your source code. ^^^^234E also works, as does char"234e, or you can define a newcommand.

If your main font doesn’t contain that glyph, you can define the command in text mode like so:

newfontfamilysymbolfontDejaVu Sans[Scale=MatchLowercase]
newcommanddtjotsymbolfont ⍎

In math mode, you would load unicode-math and use the range= option of setmathfont if the main math font you want to use does not cover it. You could also put the text-mode command inside a mbox.