The java.lang.Math.exp() returns euler’s number e raised to the power of a double value.
- If the argument is NaN, the result is NaN.
- If the argument is positive infinity, then the result is positive infinity.
- If the argument is negative infinity, then the result is positive zero.
Syntax :
public static double exp(double a) Parameter : a : the exponent part which raises to e.
Returns :
the value ea, where e is the base of the natural logarithms.
Example : To show working of java.lang.Math.exp() function
// Java program to demonstrate working// of java.lang.Math.exp() methodimport java.lang.Math; class Gfg { // driver code public static void main(String args[]) { double x = 3; // when both are not infinity double result = Math.exp(x); System.out.println(result); double positiveInfinity = Double.POSITIVE_INFINITY; double negativeInfinity = Double.NEGATIVE_INFINITY; double nan = Double.NaN; // when 1 is NAN result = Math.exp(nan); System.out.println(result); // when one argument is +INF result = Math.exp(positiveInfinity); System.out.println(result); result = Math.exp(negativeInfinity); System.out.println(result); }} |
Output:
20.085536923187668 NaN Infinity 0.0
