IT. Expert System.

There are following logical operators supported by C language Operator Description Example == Checks if the value of two operands is equal or not, if yes then condition becomes true. (A == B) is not true. != Checks if the value of two operands is equal or not, if values are not equal then condition becomes true. (A != B) is true. > Checks if the value of left operand is greater than the value of right operand, if yes then condition becomes true. (A > B) is not true. < checks if the value of left operand is less than the value of right operand, if yes then condition becomes true. (a < b) is true. >= Checks if the value of left operand is greater than or equal to the value of right operand, if yes then condition becomes true. (A >= B) is not true. <= checks if the value of left operand is less than or equal to the value of right operand, if yes then condition becomes true. (a <= b) is true. && called logical and operator. if both the operands are non zero then then condition becomes true. (a && b) is true. || called logical or operator. if any of the two operands is non zero then then condition becomes true. (a || b) is true. ! called logical not operator. use to reverses the logical state of its operand. if a condition is true then logical not operator will make false. !(a && b) is false.

Syntax:

operand < \ > \ != \ == operand

Example:

if(a>b){

/*code goes here*/

}

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