StrictMath exp() Method in Java
Last Updated :
13 Dec, 2021
All methods of java.lang.StrictMath class : Set 1, Set 2
The java.lang.StrictMath.exp() is an inbuilt method in Java is used to return a Euler number raised to the power of the specified double value. It gives rise to three special results:
- The result is positive infinity when the given argument is positive infinity.
- The result is positive zero when the argument is negative infinity.
- The result is NaN when the given argument is NaN.
Syntax :
public static double exp(double num)
Parameters: This method accepts one parameter num which is of double type which is the exponent to raise e to.
Return Value: The method returns the value e^num, where e is the base of the natural logarithms.
Examples:
Input: num = 7
Output: 1096.6331584284585
Input: num = (1.0 / 0.0)
Output: Infinity
Below programs illustrate the java.lang.StrictMath.exp() method:
Program 1:
java
import java.lang.*;
public class Geeks {
public static void main(String[] args)
{
double num1 = 0.0 , num2 = ( 1.0 / 0.0 );
double num3 = 4 ;
double expValue = StrictMath.exp(num1);
System.out.println("The exp value of "+
num1+" = " + expValue);
expValue = StrictMath.exp(num2);
System.out.println("The exp value of "+
num2+" = " + expValue);
expValue = StrictMath.exp(num3);
System.out.println("The exp value of "+
num3+" = " + expValue); }
}
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Output:
The exp value of 0.0 = 1.0
The exp value of Infinity = Infinity
The exp value of 4.0 = 54.598150033144236
Program 2:
java
import java.lang.*;
public class Geeks {
public static void main(String[] args)
{
double num1 = - 0.0 , num2 = ( 1.0 / 0.0 );
double num3 = 14 ;
double expValue = StrictMath.exp(num1);
System.out.println("The exp value of "+
num1+" = " + expValue);
expValue = StrictMath.exp(num2);
System.out.println("The exp value of "+
num2+" = " + expValue);
expValue = StrictMath.exp(num3);
System.out.println("The exp value of "+
num3+" = " + expValue);
}
}
|
Output:
The exp value of -0.0 = 1.0
The exp value of Infinity = Infinity
The exp value of 14.0 = 1202604.2841647768
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