.Tan()

In C#, the Math.Tan() method returns the tangent of a given angle.

Syntax

Math.Tan(angle);

The Math.Tan() method takes only one parameter, angle, an angle in radians of type double. The method returns the tangent 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 converts 30 degrees to radians and then uses the Math.Tan() method to calculate the tangent of that angle. Finally, Console.WriteLine() outputs the result to the console:

using System;

public class Example {
  public static void Main(string[] args) {
    // Define an angle in degrees
    double degrees = 30;

    // Convert the angle to radians
    double radians = degrees * Math.PI/180;

    // Calculate the tangent of the angle
    double tangent = Math.Tan(radians);

    // Display the result
    Console.WriteLine("The tangent of " + degrees + " degrees is: " + tangent);
  }
}

The above example will result in the following output:

The tangent of 30 degrees is: 0.5773502691896257

Codebyte Example

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

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