Math in JavaScript
- JavaScript provides a set of built-in mathematical operations and functions that allow you to perform various mathematical calculations.
Math methods in JavaScript:
Math.sqrt(x):
- Returns the square root of a number x.
Syntax:
const squareRoot = Math.sqrt(16); // Returns 4
Example:
<!DOCTYPE html>
<html>
<body>
Square Root of 17 is: <span id="p1"></span>
<script>
document.getElementById('p1').innerHTML = Math.sqrt(17);
</script>
</body>
</html>
Output:
Square Root of 17 is: 4.123105625617661
Math.pow(x, y):
- Returns x raised to the power of y.
Syntax:
const result = Math.pow(2, 3); // Returns 8 (2^3)
Example:
<!DOCTYPE html>
<html>
<body>
3 to the power of 4 is: <span id="p3"></span>
<script>
document.getElementById('p3').innerHTML = Math.pow(3, 4);
</script>
</body>
</html>
Output:
3 to the power of 4 is: 81
Math.floor(x):
- Rounds a number x down to the nearest integer.
const floored = Math.floor(3.9); // Returns 3
Example:
<!DOCTYPE html>
<html>
<body>
Floor of 4.6 is: <span id="p4"></span>
<script>
document.getElementById('p4').innerHTML = Math.floor(4.6);
</script>
</body>
</html>
Output:
Floor of 4.6 is: 4