NuVoc

KEY:	Primitive	Valence(s)				COLOR CODE: Parts of Speech
	=	rank Monadic-name	•	Dyadic-name left-rank right-rank		Verb	Adverb	Conjunction
	_:	monadic-rank  Dual-Valence-name  left-rank right-rank				Noun	Other	Control

x y

Arguments of verbs left / right

u v

Operands of modifiers left / right

m n

Noun operands of modifiers left / right

0:

=

_ Self-Classify

•

Equal  0 0

=.

Is (Local)

=:

Is (Global)

<

_  Box

•

Lesser  0 0

<.

0  Floor

•

Lesser of / Min  0 0

<:

0  Decrement

•

Lesser or Equal  0 0

>

0  Open

•

Greater  0 0

>.

0  Ceiling

•

Greater of / Max  0 0

>:

0  Increment

•

Greater or Equal  0 0

_ __

Negative Sign / Infinities

_.

Indeterminate

_: __:

_  Infinites  _ _

4:

+

0  Conjugate

•

Plus  0 0

+.

0  Real / Imag

•

GCD (Or)  0 0

+:

0  Double

•

Not-Or  0 0

*

0  Signum

•

Times  0 0

*.

0  Length / Angle

•

LCM (And)  0 0

*:

0  Square

•

Not-And  0 0

-

0  Negate

•

Minus  0 0

-.

0  Not

•

Less  _ _

-:

0  Halve

•

Match  _ _

%

0  Reciprocal

•

Divide  0 0

%.

2  Matrix Inverse

•

Matrix Divide  _ 2

%:

0  Square Root

•

Root  0 0

8:

^ ^!.p

0  Exponential

•

Power  0 0 Stope Function  0 0

^.

0  Natural Log

•

Logarithm  0 0

^:

_  Power of Verb  _ _ (If, Inverse, DoWhile)

$

_  Shape Of

•

Shape  1 _

$.

_  Sparse  _ _

$:

_  Self-Reference  _ _

u~ m~

_  Reflex

•

Passive  lu ru

~.

_  Nub

•

~:

_   Nub Sieve

•

Not-Equal  0 0

0  Evoke  0 0

|

0  Magnitude

•

Residue  0 0

|. |.!.f

_  Reverse _  Shift Right 1

•

Rotate  _ _ Shift  _ _

|:

_  Transpose

•

Rearrange Axes  1 _

12:

.

2  Determinant

•

Matrix Product  _ _

:

Definition (Explicit Def., Verb Anatomy, Monad / Dyad)

:.

mu  Assign Obverse  lu ru

::

_  Assign Adverse  _ _

,

_  Ravel

•

Append  _ _

,.

_  Ravel Items

•

Stitch  _ _

,:

_  Itemize

•

Laminate  _ _

;

_  Raze

•

Link  _ _

;.

Cut

;:

1  Words

•

Seq. Machine  _ _

;.0

_  Reversed

•

Subarray  2 _

;.±1 ±2

_  SelfIntervals

•

Intervals  1 _

;.±3

_  MaxCubes

•

Subarrays  2 _

16:

#

_  Tally

•

Copy  1 _

#.

1  Base Two

•

Base  1 1

#:

_  Antibase Two

•

Antibase  1 0

!

0  Factorial

•

Out Of  0 0

!.

mu  Fit (Customize)  lu ru

!:

0  Foreign (System Functions)  0 0

/

_  Insert

•

Table  _ _

/. /..

_  Oblique

•

Key  _ _ Key dyad  _ _

/:

_  Grade Up

•

Sort Up [Using]  _ _

\

_  Prefix

•

Infix  _ _

\.

_  Suffix

•

Outfix  _ _

\:

_  Grade Down

•

Sort Down [Using]  _ _

20:

[

_  Same

•

Left  _ _

[.

Lev

[:

Cap

]

_  Same

•

Right  _ _

].

Dex

]:

Ident

{

1  Catalogue

•

From  0 _

{.

_  Head

•

Take  1 _

{:

_  Tail

•

{::

_  Map

•

Fetch  1 _

}

_  Composite Item

•

Amend  _ _

}.

_  Behead

•

Drop  1 _

}:

_  Curtail

•

{{ }}

DirectDefinition

24:

"

Rank (u"n  Assign, m"n  Constant, u"v m"v  Copy)

".

1  Do

•

Numbers  _ _

":

_  Default Format

•

Format  1 _

`

Tie (Gerund)

`:

_  Evoke Gerund  _ _

@

mv  Atop  lv rv

@.

mv  Agenda  lv rv

@:

_  At  _ _

&

_  Bond  0 _ mv  Compose  mv mv

&.

mv  Under (Dual)  mv mv

&:

_  Appose  _ _

&.:

_  Under  _ _

?

0  Roll

•

Deal  0 0

?.

_  Roll

•

Deal  0 0

a.

Alphabet (all bytes)

(fixed seed)

29:

a:

Ace (Boxed Empty)

A.

1  Anagram Index

•

Anagram  0 _

m b. u b.

_  Boolean, Bitwise, Bitwise Shift  0 0 _  Verb Info (Obverse, Rank, Identity)

c.

•

Convert to Precision  _ _

C. C.!.2

1  Cycle-Direct 1  Permutation Parity

•

Permute  1 _

e.

_  Raze In

•

Member (In)  _ _

E.

•

Find Matches  _ _

f.

Fix

F. F.. F.: F: F:. F::

_  Fold  _ _

H.

0  Hypergeometric  0 0

i.

1  Integers

•

Index Of  _ _

i:

0  Steps

•

Index Of Last  _ _

33:

I.

1  Indices

•

Interval Index  _ _

j.

0  Imaginary

•

Complex  0 0

L.

_  Level Of

•

L:

_  Level At  _ _

m.

Modular arithmetic

M.

mu  Memo  lu ru

NB.

Comment

o.

0  Pi Times

•

Circle Function  0 0

p.

1  Roots

•

Polynomial  1 0

p..

1  Polynomial Deriv.

•

Polynomial Int.  0 1

p:

0  Primes  _ _

q:

0  Prime Factors

•

Prime Exponents  0 0

37:

r.

0  Angle

•

Polar  0 0

s:

_  Symbol  _ _

S:

_  Spread  _ _

t.

_  Run as task  _ _

T.

_  Set debug thread

•

Threads/tasks  _ _

u:

_  Unicode  _ _

x:

_  Extended Precision  _ _

Z:

_  Terminate Fold  _ _

_9: to 9:

_  Constant Functions  _ _

(u v)

_  Hook  _ _

(f g h)

_  Fork  _ _ Modifier trains

u. v.

_  Enhanced Operand  _ _

41:

assert.

Assertion

break.

Terminate loop

continue.

Terminate iteration

else. elseif.

Execute alternative

for. for_ijk.

Repeat for each item

goto_lbl. label_lbl.

Go to label

if.

Execute if

return.

Exit with result

select. case. fcase.

Select among alternatives

throw.

Throw to higher-level catcht.

try. catch. catchd. catcht.

Execute, catching errors

while. whilst.

Loop while

45: obsolete

d.

0  Ordinary Derivative

•

u D. m D.

mu  Derivative mu  Assign Derivative

•

D:

•

Secant Slope  mu mu

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Ancillary Pages

These are special articles written to comply with NuVoc standards, and tagged: Category:NuVoc.

They explain principles and practice in greater depth than appropriate on the primitives' pages themselves (all tagged: CategoryVoc), or which are relevant to more than one page.

They are task-oriented rather than function-oriented

• i.e. they describe features from the point-of-view of what the reader wants to achieve, rather than document J's functionality (as the primitive-pages do)

These pages are linked from the primitive-pages themselves, at the point where they are relevant.

But for convenient lookup and revision, they are listed below:

J Reference Sheets	One Sheet J Reference pages for J602 and J90X
Vocabulary/AboutNuVoc	About the Accessible Dictionary: how and why
Vocabulary/AccurateAccumulation	+/!.0 y and x +/@:*"1!.0 y to avoid roundoff error
Vocabulary/AET	"Absolutely essential J terms" to know for NuVoc
Vocabulary/Agreement	How argument cells are matched for dyads (with tables)
Vocabulary/AmendingBoxedStructures	Making replacements inside a boxed array
Vocabulary/ArrayProcessing	How do you process an array? (an introduction)
Vocabulary/Assignment	Private and public assignment explained
Vocabulary/Beginner's Q&A	What a beginner needs to know, in brief
Vocabulary/Constants	Number formation (an intro by examples)
Vocabulary/ControlStructures	Control words used in J definitions
Vocabulary/CyclicGerund	Cyclic gerunds explained
Vocabulary/Debug	How to debug an explicit definition
Vocabulary/DirectDefinition	Use {{ }} to write explicit definitions
Vocabulary/Dissect	Pictorial view and analysis of a J sentence
Vocabulary/EZRank	Rank in a hurry: "rank" concept rapidly explained
Vocabulary/EmptyArguments	What happens when an argument to a verb has no atoms, or no cells (two different conditions!)
Vocabulary/ErrorMessages	Error Messages (formal table plus explanations)
Vocabulary/Foreigns	System Functions and Miscellaneous Features (m!:n)
Vocabulary/FramingFill	Result collection and framing fill explained
Vocabulary/GerundsAndAtomicRepresentation	Gerunds and Atomic Representation explained
Vocabulary/Glossary	J terms (a comprehensive formal list)
Vocabulary/HowNuVoc   <--START HERE--	How to use NuVoc
Vocabulary/IFamily	The i.-family of verbs described
Vocabulary/Idioms	Common Idioms used in J best practice
Vocabulary/Inverses	Inverse and Obverse explained
Vocabulary/JBreak	JBreak: forcing J to stop executing the current process
Vocabulary/LAPACK	J interface to the LAPACK library
Vocabulary/Lint	How to use lint: the builtin Program Flow Analyzer
Vocabulary/Libraries	The J Libraries and what they do
Vocabulary/Locales	Locales explained
Vocabulary/Loopless	Loopless programming explained: repeating a function on cells, partitions, subarrays, etc.
Vocabulary/Modifiers	Modifiers (adverbs and conjunctions) explained
Vocabulary/ModifierTrains	Rules and examples for using modifier trains such as ([.*].)
Vocabulary/NounExplicitDefinition	How to define a noun as an explicit entity using (:)
Vocabulary/Nouns	All about Nouns
Vocabulary/NumericPrecisions	Numeric Precisions in J
Vocabulary/ObjectOrientedProgramming	Object-Oriented Programming in J
Vocabulary/Parsing	How sentences are executed, step by step
Vocabulary/PartsOfSpeech	The Parts of Speech: Noun, Verb, etc. Call by name and call by value.
Guides/Performance Monitor	Profile execution to find slow spots
Vocabulary/ObsoleteSyntax	No-longer-supported features of earlier version of J, seen in some of the older references.
Vocabulary/Printf	How to use the printf addon
Vocabulary/RankFromV	The rank of a verb created by an adverb or conjunction
Vocabulary/RankInfo	Rank Information linked from CategoryVoc pages
Vocabulary/RankInfoIsImportant	Why is the rank of a verb important to know?
Vocabulary/ReadingASentence	A beginner's guide to reading sentences
Guides/Regular Expressions/Overview	Regex in J
Vocabulary/ScreenOutputInput	Screen output and input explained
Vocabulary/SpecialCombinations	Special Combinations of primitives (with tables)
Vocabulary/TBlock	Clarification of the T-block and the B-block in an if.-statement
Vocabulary/TestYourJ	Test Your J (tells you if you've any need of NuVoc)
Vocabulary/Unreadability	The alleged unreadability of J - and what to do about it
Vocabulary/UnicodeCodePoint	The Unicode Code Point (UCP) explained
Vocabulary/Valence	Verb valence explained
Vocabulary/Verbs	All about Verbs
Vocabulary/VerbRank	Verb rank, and how J extends small verbs to big arrays
JDic:vocabul	VOC - the original "pro version" of this portal page
Vocabulary/Words	All about J Words
Vocabulary/ZeeLocale	"Factory words" - the z-locale and its contents

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