Operators

Every Operator

There are many operators in ArrEx. Here is a table of them.

Name	Symbol	Use	Code	Comments
Plus	+	Adding numbers, strings, or arrays	1 + 2	3
Minus	-	Subtracting numbers	2 - 1	1, can be used for negation as in -3
Multiplication	*	Multiplying numbers	2 * 3	6
Division	/	Dividing numbers	5 / 4	1.25
Parenthesis	()	Prioritize code or denotes function code	3 / (1 + 4)	0.6
Curly Brackets	{}	Prioritize code and make function parameters more readable	3 / {1 + 4}	0.6
Exponent	^	Exponentiation	2 ^ 3	8
Modulus	%	Getting the remainder	15 % 2	1
Int Division	//	Gets the int part in division	5 // 2	2, useful for making numbers integers
Equal	==	Checking equality between values	5 == 2	False
Not Equal	!=	Checking inequality between values	5 != 2	True
Greater than	>	Checking if a number is bigger than another	5 > 2	True
Less than	<	Checking if a number is smaller than another	5 < 2	False
Greater than or equal	>=	Checking if a number is bigger than or equal to another	3 >= 3	True
Less than or equal	<=	Checking if a number is smaller than or equal to another	3 <= 3	True
Boolean Not	!	Negates a boolean	!T	False
Comma	,	Separates certain code in some functions	ar(1, 2, 3, 4 )	[1, 2, 3 ,4], ar makes an array
Type equal	~=	Checks if a value is a type	3 ~= tn	True, tn means number type
In	_	Checks if a value is in an array	3_ar(1, 2, 3, 4)	True
Count	#	Checks how many times a value occurs in an array	3#ar(1, 2, 3, 4, 3, 5)	2
At	@	Checks where a value is in an array	3@ar(1, 2, 3, 4)	2
Skim	>>	Removes all instances of a value in an array	ar(1, 2, 3, 4) >> 2	[1, 3, 4]
Conditional If	? :	Does something different depending on if something is true or not	3 == 3 ? 50 : 20	50

Order of Operations

There is an order of operations that the operators work in.

Constants and Variables

Custom Functions