Learn JavaScript Math Object, Free JavaScript Math Functions Tutorial for Beginners

# javascript math function examples

In JavaScript, Math is a global object with many in-built static properties and methods.

## How to use JavaScript built-in Math Methods

Here are few static properties of JavaScript Math Object like `Math.PI`, this Math property will return the Pie Value

```
document.write(" Math.PI : returns " + Math.PI);
document.write("<br>");
document.write(" Math.E : returns " + Math.E);
document.write("<br>");
document.write(" Math.SQRT2 : returns " + Math.SQRT2);
document.write("<br>");
document.write(" Math.LN2 : returns " + Math.LN2);
document.write("<br>");

```

In this tutorial you will learn JavaScript Math Functions, that will allow you to perform many mathematical tasks on numbers.

1. ### Math.round() in Javascript

Math.round(x) returns the rounded value of x , here is an example

```
document.write(" Math.round(8.6); : returns " + Math.round(8.6));
document.write("<br>");
document.write(" Math.round(8.4); : returns " + Math.round(8.4));
document.write("<br>");

```
2. `Math.ceil(), Math.floor()` in Javascript
Math.ceil(x) returns the rounded up to its nearest integer AND Math.floor(x) rounded down to its nearest integer:

```
document.write(" Math.ceil(8.6); : returns " + Math.ceil(8.6));
document.write("<br>");
document.write(" Math.floor(8.6); : returns " + Math.floor(8.6));
document.write("<br>");

```
3. Math.pow() in Javascript
Math.pow(x, y) returns the value of x to the power of y

4. Math.sqrt() in Javascript
Math.sqrt(x) returns the square root value of x:

```
document.write(" Math.sqrt(100); : returns " + Math.sqrt(100));

```
5. Math.random()

Math.random() returns a random number between given range, 0 (inclusive), and 1 (exclusive):

```
document.write(" Math.random(); : returns " + Math.random());
document.write("<br>");
document.write(" Math.random(1,10); : returns " + Math.random(1, 10));
document.write("<br>");

```

6. Math.max() and Math.min()

Math.max() and Math.max() is used to find the lowest or highest value of any given arguments, let's look at the example below.

```
document.write("Math.max(10, 20, 37, 40, -50, -199, 400); : returns " + Math.max(10, 20, 37, 40, -50, -199, 400));
document.write("<br>");

```
7. ```
document.write("Math.min(10, 20, 37, 40, -50, -199, 400); : returns " + Math.min(10, 20, 37, 40, -50, -199, 400));
document.write("<br>");

```
8. Math.abs()

Math.abs(x) returns an absolute positive value of a number:

```
document.write("Math.abs(-10.50): returns " + Math.abs(-10.50));
document.write("<br>");

```
9. Math.cos()

Math.cos(x) returns an Cosine value of a number:

```
document.write("Math.cos(15): returns " + Math.cos(15));
document.write("<br>");

```
10. Math.tan()

Math.tan(x) returns the Tangent value of a number:

```
document.write("Math.tan(10): returns " + Math.tan(10));
document.write("<br>");

```
11. Math.sin()

Math.sin(x) returns the Sine value of a number:

```
document.write("Math.sin(10): returns " + Math.sin(10));
document.write("<br>");

```
12. Math.log()

Math.log(x) returns the logarithmic value of a number:

```
document.write("Math.log(10): returns " + Math.log(10));
document.write("<br>");

```

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