Math.exp() method in Java
DevSniper
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public static double exp(double x)
In Programming, accurate handling of numerical data especially when dealing with floating-point numbers. Java offers a variety of methods in its standard library to manage numeric operations effectively. One such method is Java Math.exp. Java Math.exp() is a in-build static method that is present in Java.lang.Math class. Java Math.exp() is used to get the exponential value of a specified double argument, which is Euler's number raised to the power of the given argument.
- If the parameter is positive or negative decimal value, this method will return Euler's number raised to the power of the given parameter.
- Euler's number approximately equal to 2.718281828459045.
- If the parameter is positive Infinity this method will return positive Infinity
- If the parameter is negative Infinity this method will return Positive Zero.
- If the parameter is NaN this method will return NaN.
Math.exp With Positive Number
public class Program
{
public static void main(String []args)
{
System.out.println("Math.exp(10) = "+ Math.exp(10));
System.out.println("Math.exp(10L) = "+ Math.exp(10L));
System.out.println("Math.exp(10f) = "+ Math.exp(10f));
System.out.println("Math.exp(10.0) = "+ Math.exp(10.0));
}
}Math.exp(10) = 22026.465794806718 Math.exp(10L) = 22026.465794806718 Math.exp(10f) = 22026.465794806718 Math.exp(10.0) = 22026.465794806718
Math.exp With Negative Number
public class Program
{
public static void main(String []args)
{
System.out.println("Math.exp(-10) = "+ Math.exp(-10));
System.out.println("Math.exp(-10L) = "+ Math.exp(-10L));
System.out.println("Math.exp(-10f) = "+ Math.exp(-10f));
System.out.println("Math.exp(-10.0) = "+ Math.exp(-10.0));
}
}Math.exp(-10) = 4.5399929762484854E-5 Math.exp(-10L) = 4.5399929762484854E-5 Math.exp(-10f) = 4.5399929762484854E-5 Math.exp(-10.0) = 4.5399929762484854E-5
Java Math.exp With Positive Infinity
Math.exp return Euler's number raised to the power of the given parameter. but If the parameter is positive Infinity this method will return positive Infinity.
public class Program
{
public static void main(String []args)
{
System.out.println("Math.exp(10/0.0) = "+ Math.exp(10/0.0) );
System.out.println("Math.exp(10L/0.0) = "+ Math.exp(10L/0.0) );
System.out.println("Math.exp(10f/0.0) = "+ Math.exp(10/0.0) );
System.out.println("Math.exp(10.1/0.0) = "+ Math.exp(10.1/0.0) );
System.out.println("Math.exp(10f/0) = "+ Math.exp(10f/0) );
System.out.println("Math.exp(10f/-0) = "+ Math.exp(10f/-0) );
System.out.println("Math.exp(-10/-0f) = "+ Math.exp(-10/-0f) );
System.out.println("Math.exp(10.1/0) = "+ Math.exp(10.1/0) );
System.out.println("Math.exp(10.1/-0) = "+ Math.exp(10.1/-0) );
System.out.println("Math.exp(-10.1/-0.0) = "+ Math.exp(-10/-0.0) );
}
}Math.exp(10/0.0) = Infinity Math.exp(10L/0.0) = Infinity Math.exp(10f/0.0) = Infinity Math.exp(10.1/0.0) = Infinity Math.exp(10f/0) = Infinity Math.exp(10f/-0) = Infinity Math.exp(-10/-0f) = Infinity Math.exp(10.1/0) = Infinity Math.exp(10.1/-0) = Infinity Math.exp(-10.1/-0.0) = Infinity
Java Math.exp With Negative Infinity
Java Math.exp method return Euler's number raised to the power of the given parameter. but If the parameter is negative Infinity this method will return positive zero.
public class Program
{
public static void main(String []args)
{
System.out.println("Math.exp(10/-0.0) = "+ Math.exp(10/-0.0) );
System.out.println("Math.exp(10L/-0.0) = "+ Math.exp(10L/-0.0) );
System.out.println("Math.exp(10f/-0.0) = "+ Math.exp(10f/-0.0) );
System.out.println("Math.exp(-10f/0.0) = "+ Math.exp(-10f/0.0) );
System.out.println("Math.exp(-10f/0) = "+ Math.exp(-10f/0) );
System.out.println("Math.exp(10.1/-0.0) = "+ Math.exp(10.1/-0.0) );
System.out.println("Math.exp(-10.1/0.0) = "+ Math.exp(-10.1/0.0) );
System.out.println("Math.exp(-10.1/0) = "+ Math.exp(-10.1/0) );
}
}Math.exp(10/-0.0) = 0.0 Math.exp(10L/-0.0) = 0.0 Math.exp(10f/-0.0) = 0.0 Math.exp(-10f/0.0) = 0.0 Math.exp(-10f/0) = 0.0 Math.exp(10.1/-0.0) = 0.0 Math.exp(-10.1/0.0) = 0.0 Math.exp(-10.1/0) = 0.0
Java Math.exp With NaN
Math.exp() used to get Euler's number (e) raised to the power of the given parameter. but If the parameter is NaN ( Not a Number) this method will return NaN.
public class Program
{
public static void main(String []args)
{
System.out.println("Math.exp(0/0.0) = "+ Math.exp(0/0.0) );
System.out.println("Math.exp(0/-0.0) = "+ Math.exp(0/-0.0) );
System.out.println("Math.exp(-0/0.0) = "+ Math.exp(-0/0.0) );
System.out.println("Math.exp(-0/-0.0) = "+ Math.exp(-0/-0.0) );
System.out.println("Math.exp(0/0f) = "+ Math.exp(0/0f) );
System.out.println("Math.exp(0/-0f) = "+ Math.exp(0/-0f) );
System.out.println("Math.exp(-0/0f) = "+ Math.exp(-0/0f) );
System.out.println("Math.exp(-0/-0f) = "+ Math.exp(-0/-0f) );
}
}Math.exp(0/0.0) = NaN Math.exp(0/-0.0) = NaN Math.exp(-0/0.0) = NaN Math.exp(-0/-0.0) = NaN Math.exp(0/0f) = NaN Math.exp(0/-0f) = NaN Math.exp(-0/0f) = NaN Math.exp(-0/-0f) = NaN