Character names

Introduction

The characters used by this wiki and by NARS2000 when writing a workspace to disk have a specific name in order that they can be displayed in ASCII text and if necessary for display purposes they have a specific Unicode value so that they can be read exactly if read from a binary file and so they can be displayed within the APL font.

When it is necessary to describe a character it's usually easier to remember the name than a hexidecimal code number. For example, the APL quad symbol "⎕" is internalized as Unicode U+9109, it can be displayed on a web page using the symbol ⎕ or can be referenced on this wiki by the name {quad}. This wiki is set up to show these brace symbols as APL characters in ordinary text.

If you want to show a series of apl characters in monospace, you can surround them block like this: <apl>{quad}</apl> (which looks like this: ⎕) for regular size APL characters (which may be cut off on some displays), or <apll>{quad}</apll> for larger APL characters also in a monospace font, and looks like this: ⎕.

Names

The following are the names for the APL symbols. Some symbols have more than one name; either the typical APL use name is used or the description if there isn't a standard function name. If there is more information about the symbol the name will be a link; click on the link to go to the page for how the symbol is used.

Symbol Names
Symbol or Glyph	Name	Is an Apl Function	Usable in Identifiers	Has Key	Key Value	Key Value (Hex)
	A Underline: A {A_} Special Symbols	No	Yes	None	9398 or 57398 *	24B6 or E036 *
	Z Underline: Z {Z_} Special Symbols	No	Yes	None	9423 or 57423 *	24CF or E04F *
0	0 - Zero Special Symbols	No	Second and subsequent characters	0	0030	001E
9	9 - Nine Special Symbols	No	Second and subsequent characters	9	0039	0027
|	{abs}	Yes	No	SHIFT+\	0124 or 2223	007C or 08AF
⍺	{alpha}	No	Yes	ALT+A	9082	237A
∧	{and}	Yes	No	ALT+0 (Zero)	8743	2227
←	{assign}	Yes	No	ALT+[	8592	2190
⊥	{basevalue}	Yes	No	ALT+B	8869	22A5
⌈	{ceiling}	Yes	No	ALT+S	8968	2308
○	{circle}	Yes	No	ALT+O	9675	25CB
⊖	{circlebar}	YesNo	No Yes	SHIFT+ALT+?	8854	2296
⊙	{circlemiddledot}	YesNo	No Yes	SHIFT+ALT+?	8857	2299
⌽	{circlestile}	Yes	No	ALT+SHIFT+8	9055	235F
,	{comma}	Yes	No	,	0044	002C
⍪	{commabar}	YesNo	No Yes	SHIFT+ALT+?	9066	236A
⍝	{comment}	Yes	No	ALT+, (Comma)	9053	235D
⍨	{commute}	YesNo	No Yes	SHIFT+ALT+?	9064	2368
∘	{compose}	YesNo	No Yes	SHIFT+ALT+?	8728	2218}
†	{dagger}	No	No	SHIFT+ALT+?	0123	007B
∇	{del}	Yes	No	ALT+G	8711	2207
∆	{delta}	No	Yes	ALT+H	8710	2206
⍙	{deltaunderbar}	No	Yes	ALT+SHIFT+H	9049	2359
⊢	{dex}	Yes	No	ALT+\	8866	22A2
⋄	{diamond}	Yes	No	ALT+`	8900	22C4
¨	{dieresis}	Yes	No	ALT+1 (One)	0168	00A8
×	{direction}	Yes	No	ALT+- (Minus)	0215	00D7
÷	{divide}	Yes	No	ALT+= (Equal)	0247	00F7
⌹	{domino}	Yes	No	ALT+SHIFT+= (Equal)	9017	2339
∪	{downshoe}	YesNo	No Yes	SHIFT+ALT+?	8746	222A
⍦	{downshoestile}	No	No	SHIFT+ALT+?	9062	2366
⌊	{downstile}	Yes	No	ALT+D	8970	230A
⊤	{downtack}	Yes	No	ALT+N	8868	22A4
↓	{drop}	Yes	No	SHIFT+ALT+?	8595	2193
¨	{each}	YesNo	No Yes	SHIFT+ALT+?	0168	00A8
⊂	{enclose}	YesNo	No Yes	SHIFT+ALT+?	8834	2282
∊	{epsilon}	YesNo	No Yes	SHIFT+ALT+?	8714	220A
⍷	{epsilonunderbar}	Yes	No	ALT+SHIFT+E	9079	2377
=	{equal}	Yes	No Yes	SHIFT+ALT+?	0061	003D
⍎	{execute}	Yes	No Yes	SHIFT+ALT+?	9038	234E
!	{factorial}	Yes	No	SHIFT+1 (One)	0033	0021
⍷	{find}	YesNo	No Yes	SHIFT+ALT+?	9079	2377
⌊	{floor}	Yes	No	ALT+D	8970	230A
⍕	{format}	Yes	No Yes	SHIFT+ALT+?	9045	2355
⍢	Dual operator {frog}	No	No Yes	SHIFT+ALT+?	9058	2362
≥	greater than or equal {ge}	Yes	No Yes	SHIFT+ALT+?	8805	2265
→	{goto}	Yes	No	ALT+]	8594	2192
⍒	{gradedown}	YesNo	No Yes	SHIFT+ALT+?	9042	{{{hex}}}
⍋	{gradeup}	YesNo	No Yes	SHIFT+ALT+?	9035	{{{hex}}}
⍳	{iota}	Yes	No Yes	SHIFT+ALT+?	9075	{{{hex}}}
⍸	{iotaunderbar}	YesNo	No Yes	SHIFT+ALT+?	9080	{{{hex}}}
∘	{jot}	YesNo	No Yes	SHIFT+ALT+?	8728	{{{hex}}}
⍝	{lamp}	Yes	No	ALT+, (Comma)	9053	{{{hex}}}
≤	less than or equal {le}	Yes	No Yes	SHIFT+ALT+?	8804	{{{hex}}}
←	{leftarrow}	Yes	No	ALT+]	8592	{{{hex}}}
{	{leftbrace}	No	No	[	123	{{{hex}}}
⊆	{leftshoeunderbar}	YesNo	No Yes	SHIFT+ALT+?	8838	{{{hex}}}
⊣	{lefttack}	Yes	No	ALT+SHIFT+\	8867	{{{hex}}}
⊣	{lev}	Yes	No	ALT+SHIFT+\ (Backslash)	8867	{{{hex}}}
⍟	{log}	Yes	No	ALT+SHIFT+8	9055	{{{hex}}}
|	{magnitude}	Yes	No	SHIFT+\ (Backslash)	124 or 2223	{{{hex}}}
≡	{match}	YesNo	No Yes	SHIFT+ALT+?	8801	{{{hex}}}
-	{minus}	Yes	No	+	45	{{{hex}}}
≢	{mismatch}	YesNo	No Yes	SHIFT+ALT+?	8802	{{{hex}}}
|	{mod}	Yes	No	SHIFT+\ (Backslash)	124 or 2223	{{{hex}}}
×	{multiply}	Yes	No	ALT+- (Minus)	215	{{{hex}}}
⍲	{nand}	YesNo	No Yes	SHIFT+ALT+?	9074	{{{hex}}}
≠	not equal {ne}	YesNo	No Yes	SHIFT+ALT+?	8800	{{{hex}}}
¯	{neg}	Yes	No	ALT+2	175	{{{hex}}}
⍱	{nor}	Yes	No	SHIFT+ALT+9	9073	{{{hex}}}
~	{not}	YesNo	No Yes	SHIFT+ALT+?	126	{{{hex}}}
⍵	{omega}	No	Yes	ALT+W	9077	{{{hex}}}
∨	{or}	YesNo	No Yes	SHIFT+ALT+?	8744	{{{hex}}}
⊣	{pass}	Yes	No	ALT+SHIFT+\ (Backslash)	8867	{{{hex}}}
π	{pi}	YesNo	No Yes	SHIFT+ALT+?	960	{{{hex}}}
⊃	{pick}	YesNo	No Yes	SHIFT+ALT+?	8835	{{{hex}}}
○	{pitimes}	Yes	No	ALT+O (Letter O)	9675	{{{hex}}}
+	{plus}	Yes	No	+	43	{{{hex}}}
*	{power}	Yes	No	SHIFT+8	42	{{{hex}}}
⎕	{quad}	Yes	No	ALT+L	9109	{{{hex}}}
⍂	{quadslope}	No	No	None	9026	{{{hex}}}
?	{query}	Yes	No	? (Question Mark	63	{{{hex}}}
⍞	{quotequad}	Yes	No	ALT+SHIFT+[ (Open Brace)	9054	{{{hex}}}
?	{random}	Yes	No	? (Question Mark)	63	{{{hex}}}
⍤	{rank}	Yes	No	ALT+SHIFT+J	9060	{{{hex}}}
⊤	{represent}	Yes	No	ALT+N	8868	{{{hex}}}
|	{residue}	Yes	No	SHIFT+\	124 or 2223	{{{hex}}}
⍴	{rho}	Yes	No	ALT+R	9076	{{{hex}}}
→	{rightarrow}	Yes	No	ALT+] (Close Brace)	8594	{{{hex}}}
}	{rightbrace}	No	No	]	125	{{{hex}}}
⊃	{rightshoe}	YesNo	No Yes	SHIFT+ALT+?	8835	{{{hex}}}
⊇	{rightshoeunderbar}	YesNo	No Yes	SHIFT+ALT+?	8839	{{{hex}}}
⊢	{righttack}	Yes	No	ALT+\ (Backslash)	8866	{{{hex}}}
√	{root}	Yes	No	ALT+SHIFT+R	8730	{{{hex}}}
⌽	{rotate}	Yes  No	No Yes	SHIFT+ALT+?	9021	{{{hex}}}
§	Multiset Symmetric Difference {section}	Yes	No	ALT+SHIFT+S	167	{{{hex}}}
{shreik}	{shreik}	Yes	No	SHIFT+1 (One)	33	{{{hex}}}
×	{sign}	Yes	No	ALT+- (Minus)	215	{{{hex}}}
×	{signum}	Yes	No	ALT+- (Minus)	215	{{{hex}}}
⌿	{slashbar}	Yes  No	No Yes	SHIFT+ALT+?	9023	{{{hex}}}
⍀	{slopebar}	Yes  No	No Yes	SHIFT+ALT+?	9024	{{{hex}}}
⍣	{sourpuss}	No	No	SHIFT+ALT+?	9059	{{{hex}}}
⍡	Convolution {snout}	No	No	SHIFT+ALT+?	9057	{{{hex}}}
⌷	{squad}	Yes  No	No Yes	SHIFT+ALT+?	9015	{{{hex}}}
*	{star}	Yes	No	SHIFT+8	42	{{{hex}}}
|	{stile}	Yes	No	SHIFT+\ (Backslash)	124 or 2223	{{{hex}}}
⊢	{stop}	Yes	No	ALT+\ (Backslash)	8866	{{{hex}}}
↑	{take}	Yes	No	ALT+Y	8593	{{{hex}}}
×	{times}	Yes	No	ALT+- (ALT Minus)	215	{{{hex}}}
⍉	{transpose}	Yes  No	No Yes	SHIFT+ALT+?	9033	{{{hex}}}
_	{underbar}	No	Yes	SHIFT - (Minus)	0095	{{{hex}}}
∪	{union}	Yes  No	No Yes	SHIFT+ALT+?	8746	{{{hex}}}
↑	{uparrow}	Yes  No	No Yes	SHIFT+ALT+?	8593	{{{hex}}}
⍥	{upon}	Yes  No	No Yes	SHIFT+ALT+?	9061	{{{hex}}}
∩	{upshoe}	Yes  No	No Yes	SHIFT+ALT+?	8745	{{{hex}}}
⌈	{upstile}	Yes	No	ALT+S	8968	{{{hex}}}
⊥	{uptack}	Yes	No	ALT+B	8869	{{{hex}}}
⍬	{zilde}	Yes	No	ALT+SHIFT+] (Close Brace)	9068	{{{hex}}}

• NARS2000 generates the underlined characters using the Unicode Private Character range 57398-57423 or 0xE036-0xE04F; the SimPL Medium and APL385 Unicode can use the circled letters at 9398-2423 or 0x24B6-0x24CF to substitute for these.

See Also: The language toolbar