C# | Math.Tan() Method Last Updated : 31 Jan, 2019 Summarize Comments Improve Suggest changes Share Like Article Like Report Math.Tan() is an inbuilt Math class method which returns the tangent of a given double value argument(specified angle). Syntax: public static double Tan(double num) Parameter: num: It is the angle(measured in radian) whose tangent is to be returned and the type of this parameter is System.Double. Return Value: Returns the tangent of num of type System.Double. If num is equal to NegativeInfinity, PositiveInfinity, or NaN, then this method returns NaN. Below are the programs to illustrate the Math.Tan() method. Program 1: To show the working of Math.Tan() method. CSharp // C# program to demonstrate working // Math.Tan() method using System; class Geeks { // Main Method public static void Main(String []args) { double a = 12; // converting value to radians double b = (a * (Math.PI)) / 180; // using method and displaying result Console.WriteLine(Math.Tan(b)); a = 63; // converting value to radians b = (a * (Math.PI)) / 180; // using method and displaying result Console.WriteLine(Math.Tan(b)); a = 187; // converting value to radians b = (a * (Math.PI)) / 180; // using method and displaying result Console.WriteLine(Math.Tan(b)); a = 45; // converting value to radians b = (a * (Math.PI)) / 180; // using method and displaying result Console.WriteLine(Math.Tan(b)); } } Output: 0.212556561670022 1.96261050550515 0.122784560902905 1 Program 2: To show the working of Math.Tan() method when the argument is NaN or infinity. CSharp // C# program to demonstrate working // Math.Tan() method in infinity case using System; class Geeks { // Main Method public static void Main(String []args) { double positiveInfinity = Double.PositiveInfinity; double negativeInfinity = Double.NegativeInfinity; double nan = Double.NaN; double result; // Here argument is negative infinity, // output will be NaN result = Math.Tan(negativeInfinity); Console.WriteLine(result); // Here argument is positive infinity, // output will also be NaN result = Math.Tan(positiveInfinity); Console.WriteLine(result); // Here argument is NaN, output will be NaN result = Math.Tan(nan); Console.WriteLine(result); } } Output: NaN NaN NaN Comment More infoAdvertise with us Next Article C# | Math.Tan() Method K Kirti_Mangal Follow Improve Article Tags : Misc C# CSharp-method CSharp-Math Practice Tags : Misc Similar Reads C# | Math.Tanh() Method Math.Tanh() is the inbuilt Math class method which returns the hyperbolic tan of a given double value argument. The result will be NaN if the given argument is NaN.Syntax: public static double Tanh(double num) Parameter: num: It is the number whose hyperbolic tan is to be returned and type of this p 2 min read C# | Math.Sin() Method Math.Sin() is an inbuilt Math class method which returns the sine of a given double value argument(specified angle). Syntax: public static double Sin(double num) Parameter: num: It is the angle(measured in radian) whose sine is to be returned and the type of this parameter is System.Double. Return V 2 min read C# | Math.Sinh() Method Math.Sinh() is the inbuilt Math class method which returns the hyperbolic sine of a given double value argument(specified angle).Syntax: public static double Sinh(double num) Parameters: num: It is the number whose hyperbolic sine is to be returned and type of this parameter is System.Double. Return 2 min read JavaScript Math tan() Method The Javas Math.tan() method in Javascript is used to return the tangent of a number. The Math. tan() method returns a numeric value that represents the tangent of the angle. The tan() is a static method of Math, therefore, it is always used as Math.tan(), rather than as a method of a Math object cre 2 min read JavaScript Math tanh() Method Javascript Math.tanh() method is used to calculate the value of the hyperbolic tangent of a number. Syntax:Math.tanh(x)Parameter: This method accepts a single parameter as mentioned above and described below:x: which is a number for which the value of hyperbolic tangent is going to be calculated.Ret 3 min read Like