# Using Math sin() function to coding in Javascript/JS

This JavaScript tutorial explains how to use the math characteristic called sin() with syntax and examples.

## Description

In JavaScript, sin() is a function that is used to return the sine of a number. Because the sin() function is a static characteristic of the Math object, it ought to be invoked via the placeholder object referred to as Math.

## Syntax

In JavaScript, the syntax for the sin() feature is:

``Math.sin(number);``

Parameters or Arguments

number The number used to calculate the sine. It is the value of an attitude expressed in radians.

## Returns

The sin() function returns the sine of a number.

## Note

To convert ranges to radians, multiply by using 2π/360 or 0.017453293. Math is a placeholder object that contains mathematical features and constants of which sin() is one of these functions.

## Example

Let’s take a seem to be at an example of how to use the sin() feature in JavaScript.

For example:

``````console.log(Math.sin(2));
console.log(Math.sin(0));
console.log(Math.sin(-0.9));``````

In this example, we have invoked the sin() characteristic the use of the Math class.

We have written the output of the sin() function to the internet browser console log, for demonstration purposes, to show what the sin() function returns.

The following will be output to the internet browser console log:

``````0.9092974268256817
0
-0.7833269096274834``````

In this example, the first output to the console log again 0.9092974268256817 which is the sine of two

The 2nd output to the console log lower back zero which is the sine of zero

The third output to the console log back -0.7833269096274834 which is the sine of -0.9.