MathF.Cos(Single) is an inbuilt MathF class method which returns the cosine of a given float value argument(specified angle).
Syntax: public static float Cos (float x);
Here, x is the angle(measured in radian) whose cosine is to be returned and the type of this parameter is System.Single.
Return Value: This method will return the cosine of x of type System.Single. If x is equal to NegativeInfinity, PositiveInfinity, or NaN, then this method returns NaN.
Below are the programs to illustrate the use of the above-discussed method:
Example 1:
// C# program to illustrate the // MathF.Cos(Single) Method using System;
class GFG{
// Main Method
public static void Main(String[] args)
{
float a = 45f;
// converting value to radians
float b = (a * (MathF.PI)) / 180;
// using method and displaying result
Console.WriteLine(MathF.Cos(b));
a = 54f;
// converting value to radians
b = (a * (MathF.PI)) / 180;
// using method and displaying result
Console.WriteLine(MathF.Cos(b));
a = 70f;
// converting value to radians
b = (a * (MathF.PI)) / 180;
// using method and displaying result
Console.WriteLine(MathF.Cos(b));
}
} |
0.7071068 0.5877852 0.34202
Example 2: To show the working of MathF.Cos() method when the argument is NaN or Infinity.
// C# program to illustrate the // MathF.Cos(Single) method using System;
class GFG {
// Main Method
public static void Main(String[] args)
{
// taking infinity values
float positiveInfinity = float .PositiveInfinity;
float negativeInfinity = float .NegativeInfinity;
// taking NaN
float nan = float .NaN;
float result;
// Here argument is negative infinity,
// so the output will be NaN
result = MathF.Cos(negativeInfinity);
Console.WriteLine(result);
// Here argument is positive infinity,
// so the output will also be NaN
result = MathF.Cos(positiveInfinity);
Console.WriteLine(result);
// Here argument is NaN, output will be NaN
result = MathF.Cos(nan);
Console.WriteLine(result);
}
} |
NaN NaN NaN