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Math.Atan() Method in C#
The Math.Atan() method in C# is used to return the angle whose tan is the specified number. The number is a double value argument. The method returns an angle, θ, measured in radians, such that -Π/2 ≤θ≤Π/2.
Syntax
Following is the syntax −
public static double Atan(double num)
Example
Let us now see an example to implement the Math.Atan() method −
using System;
public class Demo {
public static void Main(){
double val1 = 0.0;
double val2 = 1.0;
Console.WriteLine("Return value of {0} : {1}", val1, Math.Atan(val1));
Console.WriteLine("Return value of {0} : {1}", val2, Math.Atan(val2));
}
}Output
This will produce the following output −
Return value of 0 : 0 Return value of 1 : 0.785398163397448
Example
Let us see another example to implement the Math.Atan() method −
using System;
public class Demo {
public static void Main(){
double val1 = Double.PositiveInfinity;
double val2 = Double.NegativeInfinity;
Console.WriteLine("Return value of {0} : {1}", val1, Math.Atan(val1));
Console.WriteLine("Return value of {0} : {1}", val2, Math.Atan(val2));
}
}Output
This will produce the following output −
Return value of ∞ : 1.5707963267949 Return value of -∞ : -1.5707963267949
Updated on: 06-Nov-2019
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