Mathematical Operators

What are mathematical operators?

Mathematical operators perform calculations on numbers. JavaScript supports standard math operations plus some advanced functions in the Math object.

Benefits of mathematical operators?

• Calculate positions in games
• Handle damage calculations
• Manage health and resources
• Create physics simulations
• Process numerical game data

// Basic operations
const health = 100;
const damage = 20;
const newHealth = health - damage; // Subtraction

const sum = 5 + 10; // 2 (addition)

const product = 5 * 10; // 50 (multiplication)

const quotient = 10 / 2; // 5 (division)

// Modulo (remainder)
const remainder = 17 % 5; // 2

// Exponentiation
const squared = 5 ** 2; // 25

// Math object
const max = Math.max(10, 20, 30); // 30
const random = Math.random(); // 0 to 1
const rounded = Math.round(4.7); // 5
const absolute = Math.abs(-10); // 10

What does this code do?

• Uses basic operators: - for subtraction
• Uses % modulo operator to get remainder
• Uses ** exponentiation operator for powers
• Uses Math.max() to find largest number
• Uses Math.random() to generate random number
• Uses Math.round() to round decimals
• Uses Math.abs() to get absolute value

Try It Yourself

%%js // CODE_RUNNER: mathematical const damage = 25; const health = 100; const newHealth = Math.max(0, health - damage); console.log(newHealth); const random = Math.floor(Math.random() * 100); console.log(“Random: “ + random); console.log(“Square root of 16: “ + Math.sqrt(16));