Operators

Operators are used to modify data and return it, for example to do arithmetic. They are classified as nilary, unary, binary or ternary depending on the number of arguments they take, and non-lazy or lazy depending on whether they take their arguments in evaluated form or non-evaluated form. There are also some operators that use their own syntax. In verbose mode they take the form of functions, similar to commands. Operands are denoted by x, y, z and a respectively.

Non-lazy

Nilary

Operator	Verbose	Returns
Ｓ	InputString	The next input as a string.
Ｎ	InputNumber	The next input as a number.
‽	Random	0 or 1 with equal chance.
ＫＡ	PeekAll	Every cell on the canvas, from left to right and top to bottom.
ＫＭ	PeekMoore	Cells in a Moore neighborhood around the cursor
ＫＶ	PeekVonNeumann	Cells in a Von Neumann neighborhood around the cursor.
ＫＫ	Peek	The character under the cursor.
ⅈ	I/X	Current cursor x-position.
ⅉ	J/Y	Current cursor y-position.

Unary

Operator	Verbose	Returns
±	Negate	-x. Vectorizes.
Ｌ	Length	The length of x, cast to a string if a number.
¬	Not	False if x is truthy, else True if x is falsy.
Ｉ	Cast	x as a string if it is a number, or x as a number if it is a string.
‽	Random	A random integer between 0 and x, each number having equal chance to appear, or a randomly selected character if x is a string or a random element if x is a list.
Ｖ	Evaluate/eval	The result after executing x as a string.
⊟	Pop	The last value in x, after removing it from x.
↧	Lowercase	The lowercase equivalent of x if it has one. Vectorizes.
↥	Uppercase	The uppercase equivalent of x if it has one. Vectorizes.
⌊	Minimum/min/Floor	The minimum value in x, or the floor of x if it is a number.
⌈	Maximum/max/Ceiling/ceil	The maximum value in x, or the ceiling of x if it is a number.
℅	Character/Ordinal/chr/ord	The character code of x if x is a character, or the character x is the character code of if x is an integer.
⮌	Reverse	x reversed. Also works on non-negative integers.
≕	GetVariable/getvar	The value of the variable x.
″	Repeated	Wolfram pattern-matching construct matching one or more of x.
‴	RepeatedNull	Wolfram pattern-matching construct matching zero or more of x.
✂	Slice	A new iterable containing the elements of x, if this is implemented in the underlying Python class.
…	Range	Range from 0 to x, excluding x.
…·	InclusiveRange	Range from 0 to x, including x.
～	BitwiseNot	The 2's complement of x if x is an integer, or can be cast from string to integer.
↔	Absolute/abs	abs(x). Vectorizes.
Σ	Sum	The sum of all elements in x if it is an array, digital sum if it is a number, sum of all numbers or digital sum if it is a string depending on whether it can be parsed as a single number.
Π	Product	The product of all elements in x if it is an array, digital product if it is a number, product of all numbers or digital product if it is a string depending on whether it can be parsed as a single number.
⊕	Incremented/++	x+1, casting if it is a string. Vectorizes.
⊖	Decremented/--	x-1, casting if it is a string. Vectorizes.
⊗	Doubled/***	x*2, casting if it is a string. Vectorizes.
⊘	Halved/\\	x/2, casting if it is a string. Vectorizes.
ＵＶ	PythonEvaluate/pyeval	eval(x).
₂	SquareRoot	sqrt(x).

Binary

Operator	Verbose	Returns
⁺	Add/Plus	x+y. Vectorizes.
⁻	Subtract/Minus	x-y, or x with y deleted if both x and y are strings, or x with instances of elements of y removed if both x and y are lists. Vectorizes.
×	Multiply/Times	x*y, or x extended to length len(x)*y if one is a string. Vectorizes.
÷	IntDivide/IntegerDivide	x//y. Vectorizes.
∕	Divide	x/y, or x reduced to length len(x)/y if one is a string, or x split by y if x and y are strings, or x reduced using y if y is a function. Vectorizes.
﹪	Modulo	x%y. Note that this can be used to format strings.
⁼	Equals	Whether x is equal to y.
‹	Less	<
›	Greater	>
＆	BitwiseAnd	&. Vectorizes.
｜	BitwiseOr	|. Vectorizes.
…·	InclusiveRange	[x, y] over the integers or characters.
…	Range	[x, y) over the integers or characters.
…	CycleChop/Mold	x repeated and chopped to length y.
Ｘ	Exponentiate/Exponent/Power	x to the power of y.
§	AtIndex	x[y], wrapping if needed.
⊞Ｏ	PushOperator	x after pushing y to x.
⪫	Join	The result of joining x with y.
⪪	Split	The result of splitting x with y if y is a string, or x split into pieces of length y if y is an number.
⌕Ａ	FindAll	The indices of y in x.
⌕	Find	The index of y in x.
◧	PadLeft	The result of left-padding x with y.
◨	PadRight	The result of right-padding x with y.
№	Count	The number of occurrences of y in x.
➙	Rule	Wolfram equivalent of named argument. Also used as match-replacement pair.
⧴	DelayedRule	Lazily evaluated rule, currently does nothing.
？	PatternTest	Wolfram pattern-matching construct. Matches x only when y returns truthy.
✂	Slice	Every item of x starting at index y.
↨	Base	x converted from (if an array) or to base y. Can also be used to evaluate a polynomial.
⍘	BaseString	x converted from (if a string) or to base y, up to base 62, using digits, lowercase letters and uppercase letters, or to base len(y) if y is a string.

Ternary

Operator	Verbose	Returns
✂	Slice	Every item of x starting at index y until (but not including) index z.

Quaternary

Operator	Verbose	Returns
✂	Slice	Every a items of x starting at index y until (but not including) index z.

Lazy

Binary

Operator	Verbose	Returns
∧	And/and	y if x and y are both truthy else False. Short-circuits.
∨	Or/or	y if y is truthy, else x if x is truthy, else False. Short-circuits.

Ternary

Operator	Verbose	Returns
⎇	Ternary	y if x is truthy else z.

Other

Operator	Verbose	Arguments	Returns
ＫＤ	PeekDirection	exp dir	The cells in a line of length x in the direction y from the cursor, including the cell under the cursor.
Ｅ	Each/Map	exp exp	An array arr where arr[i] is y(x[i]). During evaluation of y, the loop variable and index are stored in the first two free variables in ικλμνξπρςστυφχψωαβγδεζηθ.
⭆	StringMap	str exp	A string str formed from the concatenation of y(x[i]) for all characters in x. During evaluation of y, the loop variable and index are stored in the first two free variables in ικλμνξπρςστυφχψωαβγδεζηθ.
⊙	Any/Some	exp exp	True if y returns truthy for any element in x else False. During evaluation of y, the loop variable and index are stored in the first two free variables in ικλμνξπρςστυφχψωαβγδεζηθ.
⬤	All/Every	exp exp	True if y returns truthy for all elements in x else False. During evaluation of y, the loop variable and index are stored in the first two free variables in ικλμνξπρςστυφχψωαβγδεζηθ.
Φ	Filter	exp exp	An array arr containing all the values in x where y returns truthy. During evaluation of y, the loop variable and index are stored in the first two free variables in ικλμνξπρςστυφχψωαβγδεζηθ.
▷	EvaluateVariable/evalvar	exp lst	Runs the function in the variable x with y as its arguments.
▷	EvaluateVariable/evalvar	exp exp	evalvar with y as its sole argument.
ＵＰ	PythonFunction	str lst	Gets the function with a return value x from Python, and runs it with y as arguments.