JavaScript Math
The JavaScript Math object offers various constants and methods for performing
mathematical operations. Unlike the Date object, it does not have a
constructor.
JavaScript Math Method
Here is a list of JavaScript Math methods with their descriptions.
Math.sqrt(n)
The JavaScript `Math.sqrt(n)` method returns the square root of a given
number.
Example
<Script>
console.log(Math.sqrt(16));
console.log(Math.sqrt(25));
console.log(Math.sqrt(2));
console.log(Math.sqrt(-1));
</Script>
Output:
4
5
1.4142135623730951
NaN
Math random()
The JavaScript `Math.random()` method returns a random number between 0 and 1.
Example
<Script>
console.log(Math.random());
</Script>
Output:
0.1234567890123456 (a random number between 0 and 1)
Math.pow(m,n)
The JavaScript `Math.pow(m, n)` method returns \(m\) raised to the power of
\(n\), or \(m^n\).
Example
<Script>
console.log(Math.pow(2, 3));
console.log(Math.pow(3, 4));
console.log(Math.pow(4, 2));
console.log(Math.pow(5, 1));
</Script>
Output :
8 (2 * 2 * 2)
81 (3 * 3 * 3 * 3)
16 (4 * 4)
5 (5 * 1)
Math.floor(n)
The JavaScript `Math.floor(n)` method returns the largest integer less than or
equal to the given number. For example, it returns 3 for 3.7 and 5 for 5.9.
Example
<Script>
console.log(Math.floor(3.7));
console.log(Math.floor(5.9));
console.log(Math.floor(7.1));
console.log(Math.floor(-3.7));
console.log(Math.floor(-5.9));
</Script>
Output:
3
5
7
-4
-6
Math.celi(n)
The JavaScript `Math.ceil(n)` method returns the smallest integer greater than
or equal to the given number. For example, it returns 4 for 3.7 and 6 for 5.9.
Example
<Script>
console.log(Math.ceil(3.7));
console.log(Math.ceil(5.9));
console.log(Math.ceil(7.1));
console.log(Math.ceil(-3.7));
console.log(Math.ceil(-5.9));
</Script>
Output:
4
6
8
-3
-5
Math.round(n)
The JavaScript `Math.round(n)` method returns the integer nearest to the given
number. If the fractional part is 0.5 or greater, it rounds up to the next
integer; otherwise, it rounds down. For example, it returns 4 for 3.7, 3 for
3.3, and 6 for 5.9.
Example
<Script>
console.log(Math.round(3.7));
console.log(Math.round(3.3));
console.log(Math.round(5.9));
console.log(Math.round(5.5));
console.log(Math.round(4.1));
</Script>
Output :
4
3
6
6
4
Math.abs(n)
The JavaScript `Math.abs(n)` method returns the absolute value of the given
number. For example, it returns 4 for -4 and 6.6 for -6.6.
Example
<Script>
console.log(Math.abs(-4));
console.log(Math.abs(-6.6));
console.log(Math.abs(3));
console.log(Math.abs(-0));
</Script>
Output :
4
6.6
3
0
