ASP Comparison Operators Logical Operators

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ASP Arithmetic Operators

The mathematical operators in ASP are similar to many other programming languages. However, ASP does not support shortcut operators like ++, --, +=, etc.

Operator	English	Example	Result
+	Addition	myNum = 3 + 4	myNum = 7
-	Subtraction	myNum = 4 - 1	myNum = 3
*	Multiplication	myNum = 3 * 2	myNum = 6
/	Division	myNum = 9 / 3	myNum = 3
^	Exponential	myNum = 2 ^ 4	myNum = 16
Mod	Modulus	myNum = 23 Mod 10	myNum = 3
-	Negation	myNum = -10	myNum = -10
\	Integer Division	myNum = 9 \ 3	myNum = 3

Comparison Operators

Comparison operators are used when you want to compare two values to make a decision. Comparison operators are most commonly used in conjunction with "If...Then" and "While something is true do this..." statements, otherwise known as conditional statements. The items that are most often compared are numbers. The result of a comparison operator is either TRUE or FALSE.

Operator	English	Example	Result
=	Equal To	4 = 3	False
<	Less Than	4 < 3	False
>	Greater Than	4 > 3	True
<=	Less Than Or Equal To	4 <= 3	False
>=	Greater Than Or Equal To	4 >= 3	True
<>	Not Equal To	4 <>3	True

Logical Operators

The above comparison operators result in a truth value of TRUE or FALSE. A logical operator is used for complex statements that must make decisions based on one or more of these truth values.

Operator	English	Example	Result
And	Both Must be TRUE	True and False	False
Or	One Must be TRUE	True or False	True
Not	Flips Truth Value	Not True	False

String Operators

The only string operator is the string concatenation operator "&" that takes two strings and slams them together to form a new string. An example would be string1 = "Tim" and string2 = " is a Hero". The following code would combine these two strings into one: string3 = string1 & string2

Operator	English	Example	Result
&	String Concatenation	string4 = "Bob" & " runs"	string4 = "Bob runs"

We will be using these operators throughout the tutorial, so chances are you will get understand them more and more as this tutorial goes on.