Adding a new Calculator contract

[BChainbuddy]

Deployment of the contract Calculator

I worked on a new basic blockchain contract Simple Calculator...

Usage:

The calculator contract lets the user perform calculations on the preferred blockchain.

Key features

Addition

The user inputs the parameters a and b. The function adds a and b together.

    function add(uint256 a, uint256 b) public pure returns (uint256) {
        return a + b;
    }

Subtraction

The user inputs the parameters a and b. The function subtracts b from a.

    function subtract(uint256 a, uint256 b) public pure returns (uint256) {
        require(a >= b, "Subtraction underflow");
        return a - b;
    }

Multiplication

The user inputs the parameters a and b. The function multiplies a with b.

    function multiply(uint256 a, uint256 b) public pure returns (uint256) {
        return a * b;
    }

Divison

The user inputs the parameters a and b. The function divides a by b.

    function divide(uint256 a, uint256 b) public pure returns (uint256) {
        require(b != 0, "Division by zero");
        return a / b;
    }