# .Sin()

Published Mar 24, 2023
Contribute to Docs

The `Math.Sin()` class method returns the sine of a given angle.

## Syntax

``````Math.Sin(angle);
``````

The `Math.Sin()` method takes only one parameter, `angle`, an angle in radians of type `double`. The method returns the sine of the `angle` as a `double` value or `NaN` (not a number) if the value of `angle` equals:

• `NaN`
• `NegativeInfinity`
• `PositiveInfinity`

## Example

The following example first converts `30` degrees to radians, then uses the `Math.Sin()` method to return the sine of that angle. Finally, the `Console.WriteLine()` function prints the result to the console:

```using System;
public class Example {  public static void Main(string[] args) {    double degrees = 30;    double radians = degrees * Math.PI/180;
Console.WriteLine("The sine of " + degrees + " degrees is: " + sine);  }}
```

The example will result in the following output:

```The sine of 30 degrees is: 0.5
```

## Codebyte Example

The following example is runnable and returns the sine of the `angle` given in degrees:

`usVisit uscodeHide codeCodeOutputHide outputHide outputLoading...`