Cypher builtin functions

Name	Signature	Description
abs	abs(NUMBER?) :: NUMBER?	absolute value of a number
acos	acos(NUMBER?) :: FLOAT?	arcosine (in radians) of a number
asin	asin(NUMBER?) :: FLOAT?	arcsine (in radians) of a number
atan	atan(NUMBER?) :: FLOAT?	arctangent (in radians) of a number
atan2	atan2(NUMBER?, NUMBER?) :: FLOAT?	arctangent (in radians) of the quotient of its arguments
ceil	ceil(NUMBER?) :: FLOAT?	smallest integer greater than or equal to the input
coalesce	coalesce(ANY?, ..) :: ANY?	returns the first non-null value in a list of expressions
cos	cos(NUMBER?) :: FLOAT?	cosine of a number of radians
cot	cot(NUMBER?) :: FLOAT?	cotangent of a number of radians
degrees	degrees(NUMBER?) :: FLOAT?	convert radians to degrees
e	e() :: FLOAT?	mathematical constant e
exp	exp(NUMBER?) :: FLOAT?	return the mathematical constant e raised to the power of the input
floor	floor(NUMBER?) :: FLOAT?	largest integer less than or equal to the input
haversin	haversin(NUMBER?) :: FLOAT?	half the versine of a number
head	head(LIST? OF ANY?) :: ANY?	extract the first element of a list
id	id(NODE?) :: ANY?	extract the ID of a node
keys	keys(ANY?) :: LIST? OF STRING?	extract the keys from a map, node, or relationship
lTrim	lTrim(STRING?) :: STRING?	original string with leading whitespace removed
labels	labels(ANY?) :: LIST? OF STRING?	extract the labels of a node or relationship
last	last(LIST? OF ANY?) :: ANY?	extract the last element of a list
left	left(STRING?, INTEGER?) :: STRING?	string containing the specified number of leftmost characters of the original string
length	length(PATH?) :: INTEGER?	length of a path (ie. the number of relationships in it)
log	log(NUMBER?) :: FLOAT?	natural logarithm of a number
log10	log10(NUMBER?) :: FLOAT?	common logarithm (base 10) of a number
nodes	nodes(PATH?) :: LIST? OF NODE?	extract a list of nodes in a path
pi	pi() :: FLOAT?	mathematical constant π
properties	properties(ANY?) :: MAP?	extract the properties from a map, node, or relationship
rTrim	rTrim(STRING?) :: STRING?	original string with trailing whitespace removed
radians	radians(NUMBER?) :: FLOAT?	convert degrees to radians
rand	rand() :: FLOAT?	random float between 0 (inclusive) and 1 (exclusive)
range	range(start :: INTEGER, end :: INTEGER, step :: INTEGER?) :: LIST? OF INTEGER?	construct a list of integers representing a range
relationships	relationships(PATH?) :: LIST? OF RELATIONSHIP?	extract a list of relationships in a path
replace	replace(original :: STRING?, target :: STRING?, replacement :: STRING?) :: STRING?	replace every occurrence of a target string
reverse	reverse(ANY?) :: ANY?	reverse a string or list
right	right(STRING?, INTEGER?) :: STRING?	string containing the specified number of rightmost characters of the original string
round	round(input :: NUMBER?, precision :: INTEGER?, mode :: STRING?) :: FLOAT?	nearest number to the input
sign	sign(NUMBER?) :: INTEGER?	signum of a number
sin	sin(NUMBER?) :: FLOAT?	sine of a number of radians
size	size(ANY?) :: INTEGER?	number of elements in a list or characters in a string
split	split(input :: STRING?, delimiter :: STRING?) :: LIST? OF STRING?	split a string on every instance of a delimiter
sqrt	sqrt(NUMBER?) :: FLOAT?	square root of a number
substring	substring(original :: STRING?, start :: INTEGER? [, end :: INTEGER? ]) :: STRING?	substring of the original string, beginning with a 0-based index start and length
tail	tail(LIST? OF ANY?) :: LIST? OF ANY?	return the list without its first element
tan	tan(NUMBER?) :: FLOAT?	tangent of a number of radians
timestamp	timestamp() :: INTEGER?	number of milliseconds elapsed since midnight, January 1, 1970 UTC
toBoolean	toBoolean(STRING?) :: BOOLEAN?	convert a string into a boolean
toFloat	toFloat(ANY?) :: FLOAT?	convert a string or integer into a float
toInteger	toInteger(ANY?) :: INTEGER?	convert a string or float into an integer
toLower	toLower(STRING?) :: STRING?	convert a string to lowercase
toString	toString(ANY?) :: STRING?	convert a value to a string
toUpper	toUpper(STRING?) :: STRING?	convert a string to uppercase
trim	trim(STRING?) :: STRING?	removing leading and trailing whitespace from a string
type	type(RELATIONSHIP?) :: STRING?	return the name of a relationship