# Comparisons operators in Expression Editor

Operators are used to specify comparisons between expressions.

Yeeflow offers various types of operators. This article lists operators supported by Expression Editor. ## Overview of Operators

Please Note: You need choose the corresponding element(s) when using operators.

 Operators Description Example Outcome + (Plus or string concat) Plus two numbers for addition; or concat both elements(numbers and text). [number1/Text1]+[number2/Text2] E1. 1+3; E2. 1+abc E3. a+xy E1. 4 E2: 1abc E3. axy - (Minus) Minus number(s) for subtraction. [number1]-[number2] 3-1 2 * (Multiply) Multiple numbers for multiplication. [number1]*[number2] 3*4 12 / (Divide) Divide by sign for division [number1]/[number2] 15/3 5 %(Modulo) Return the remainder(modulus) after a division of one number by another. [number1]%[number2] 8%5 3 (  (Open paren) Open parenthesis. It must consist of open parenthesis and close parenthesis. 3*(5+3) 24 ) (Close paren) Close parenthesis. It must consist of open parenthesis and close parenthesis. 3*(5+3) 24 And Returns TRUE if all of its arguments are TRUE. Mostly it's used between expressions. E1: 7 > 0 and 5 > 3; E2: variable 1==ABC and variable 2>500 E1: "Yes" or "Ture"; E2: "No" or "False" [Assumed that variable 1 is "ABD", variable 2 is "800".] Or Returns TRUE if any argument is TRUE. Mostly it's used between expressions. E1: 7 > 0 or  5 > 8; E2: variable 1==ABC or  variable 2>500 E1: "Yes" or "Ture"; E2: "Yes" or "True" [Assumed that variable 1 is "ABD", variable 2 is "800".] == (Equal) Equal sign, indicating the same value. Mostly it's used between functions. iif(variable1==A, GOOD,BAD) "GOOD" [Assumed that variable1 is "A"] != (Not equal) Not equal sign, indicating not have the indicated value. Mostly it's used between functions. iif(variable1!=A, GOOD,BAD) "BAD" [Assumed that variable1 is "A"] > (Greater than or equal) Used to compare expressions, indicating numeric values higher than the comparison. iif(variable1 >100 , GOOD,BAD) "BAD" [Assumed that variable1 is "90"] >= (Greater than) Used to compare expressions, indicating numeric values the same or higher than the comparison. < (Less than) Used to compare expressions, indicating numeric values less than the comparison. iif(variable1 <100 , Need improve,GOOD) "Need improve" [Assumed that variable1 is "90"] <= (Less than or equal) Used to compare expressions, indicating numeric values the same or less than the comparison.