JavaScript Math Object - JavaScript Math Methods
JavaScript Math
- The JavaScript math object provides several constants and methods to perform mathematical operation. Unlike date object, it doesn't have constructors.
JavaScript Math Methods
- Let's see the list of JavaScript Math methods with description.
| Methods | Description |
|---|---|
| abs() | It returns the absolute value of the given number. |
| acos() | It returns the arccosine of the given number in radians. |
| asin() | It returns the arcsine of the given number in radians. |
| atan() | It returns the arc-tangent of the given number in radians. |
| cbrt() | It returns the cube root of the given number. |
| ceil() | It returns a smallest integer value, greater than or equal to the given number. |
| cos() | It returns the cosine of the given number. |
| cosh() | It returns the hyperbolic cosine of the given number. |
| exp() | It returns the exponential form of the given number. |
| floor() | It returns largest integer value, lower than or equal to the given number. |
| hypot() | It returns square root of sum of the squares of given numbers. |
| log() | It returns natural logarithm of a number. |
| max() | It returns maximum value of the given numbers. |
| min() | It returns minimum value of the given numbers. |
| pow() | It returns value of base to the power of exponent. |
| random() | It returns random number between 0 (inclusive) and 1 (exclusive). |
| round() | It returns closest integer value of the given number. |
| sign() | It returns the sign of the given number |
| sin() | It returns the sine of the given number. |
| sinh() | It returns the hyperbolic sine of the given number. |
| sqrt() | It returns the square root of the given number |
| tan() | It returns the tangent of the given number. |
| tanh() | It returns the hyperbolic tangent of the given number. |
| trunc() | It returns an integer part of the given number. |
Math.sqrt(n)
- The JavaScript math.sqrt(n) method returns the square root of the given number.
Sample Code
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
Square Root of 64 is: <span id="p1"></span>
<script>
document.getElementById('p1').innerHTML=Math.sqrt(64);
</script>
</body>
</html>
Output
Square Root of 64 is: 8Math.random()
- The JavaScript math.random() method returns the random number between 0 to 1
<span id="p2"></span>
<script>
document.getElementById('p2').innerHTML=Math.random();
</script>
Math.pow(m,n)
- The JavaScript math.pow(m,n) method returns the m to the power of n that is mn.
Math.floor(n)
- The JavaScript math.floor(n) method returns the lowest integer for the given number. For example 3 for 3.7, 5 for 5.9 etc.
Math.ceil(n)
- The JavaScript math.ceil(n) method returns the largest integer for the given number. For example 4 for 3.7, 6 for 5.9 etc.
Math.round(n)
- The JavaScript math.round(n) method returns the rounded integer nearest for the given number. If fractional part is equal or greater than 0.5, it goes to upper value 1 otherwise lower value 0. For example 4 for 3.7, 3 for 3.3, 6 for 5.9 etc.
Math.abs(n)
- The JavaScript math.abs(n) method returns the absolute value for the given number. For example 4 for -4, 6.6 for -6.6 etc.
Sample Code
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
Square Root of is: <span id="p1"></span> <br>
Random Number is: <span id="p2"></span> <br>
Floor of 45.6 is: <span id="p3"></span> <br>
Ceil of 76.6 is: <span id="p4"></span> <br>
Round of 12.3 is: <span id="p5"></span> <br>
Absolute value of -4 is: <span id="p6"></span> <br>
<script>
document.getElementById('p1').innerHTML=Math.sqrt(64);
document.getElementById('p2').innerHTML=Math.random();
document.getElementById('p3').innerHTML=Math.floor(45.6);
document.getElementById('p4').innerHTML=Math.ceil(76.6);
document.getElementById('p5').innerHTML=Math.round(12.3);
document.getElementById('p6').innerHTML=Math.abs(-4);
</script>
</body>
</html>
Output
Square Root of is: 8
Random Number is: 0.9862446509440539
Floor of 45.6 is: 45
Ceil of 76.6 is: 77
Round of 12.3 is: 12
Absolute value of -4 is: 4