Operator

Operators are special symbols, or keywords that are used to perform operations on variables and values. You can combine objects and operators to create expressions that produces a response.

+, -, *, /, %, //, ** (arithmetic operators)
not x (logical negation)
x and y (logical conjunction)
x or y (logical disjunction)
x == y (equality)
x != y (inequality)

# pragma version 0.4.0

stored_value: public(uint256)
arithmetic_result: public(uint256)
logic_result: public(bool)

@deploy
def __init__():
    self.stored_value = 534532

@external
def arithmeticFunction(x: uint256, y:uint256) -> uint256:

    # Replace `+` operator below with relevant operators
    self.arithmetic_result = x + y
    return self.arithmetic_result

@external
def negateLogicFunction() -> bool:

    # Calling the function below negates the current value
    self.logic_result = not self.logic_result
    return self.logic_result

@external
def conjunctionAndDisjunctionLogicFunction(x: uint256, y:uint256) -> bool:

    # Evaluate conjunction logic
    self.logic_result = (x > y) and (y == x)

    # Return stored boolean result
    return self.logic_result


@external
def equalityCheckerFunction(inputValue: uint256) -> bool:

    # Returns `true` if stored_value equals to input value
    # Replace `==` operator to test for inequality evaluation
    return self.stored_value == inputValue

Operator

Further Reading: