JavaScript Math sin() method

The JavaScript math sin() method returns the sine of the given number. The value returned by sin() method ranges between -1 to 1, which represents the sine of the angle.

Syntax

The sin() method is represented by the following syntax:

Parameter

num - A number.

Return

The sine of the number.

JavaScript Math sin() method example

Here, we will understand sin() method through various examples.

Example 1

Let's see a simple example of sin() method.

<script>
document.writeln(Math.sin(1)+"<br>");
document.writeln(Math.sin(2));
</script>

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Output:

0.8414709848078965
0.9092974268256817

Example 2

In this example, we will use sin() method with negative numbers.

<script>
document.writeln(Math.sin(-1)+"<br>");
document.writeln(Math.sin(-0.5));
</script>

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Output:

-0.8414709848078965
-0.479425538604203

Example 3

Let's see sin() method with some different test cases.

<script>
document.writeln(Math.sin(0)+"<br>");
document.writeln(Math.sin(Math.PI));
</script>

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Output:

0
1.2246467991473532e-16

Example 4

Here, you can test sin() method with your own test cases.

<script>
function display()
{
  var x=document.getElementById("num").value;
document.getElementById("result").innerHTML=Math.sin(x);
}
</script>
<form>
  Enter a number: <input type="text" id="num">
  <input type="button"  onclick="display()" value="submit">
  </form>
  <p><span id="result"></span></p>

Test it Now

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