Primitives

K's primitives are designed to fit a large range of diverse functionality within the ASCII character set. This makes it typable on a keyboard, while keeping the language expressive and interesting to use.

All of K's primitives are made to be multipurpose, and have varied meanings based on the context they are used in. Symbol primitives can be either 1 or 2 characters long.

Verbs

Single argument forms(monadic) listed first, two-argument forms(dyadic) listed second.

Empty cells indicate that the primitives are the same as K4-K6.

Table of Primitives in major dialects

	K3		K4-K6		K9
	monad	dyad	monad	dyad	monad	dyad
:			identity	right
+			transpose	add
-			negate	subtract
*			first	multiply
%	reciprocal		square root	divide
!			enum, odometer, keys	mod, create dict
&			where	min
|			reverse	max
<			grade up	lesser
>			grade down	greater
=			group, identity matrix	equal
~			not	match
,			enlist	concatenate
^	shape	power	null?	except, fill	sort	cut
#			length	take, reshape		filter
_			floor, lowercase	drop, delete, cut		filter-out
$			string	pad, cast
?			distinct, random-float	find, random
@	atom?		type	at		cast
.			eval, values	dot

Table of named primitives based on implementation

	oK	K7	K9
utility	in prm	in within bin like find freq prm cmb
math	sin cos exp log	sqrt sin cos abs [n]log [n]exp [n]rand
stats		count first last min max sum avg var dev med
table(K7+)		asc dsc key
misc		min max asc