What Are E And PI

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E is the base of the natural logarithm and PI is mathematical value pi.

In Core Java, E and PI typically refer to the constants Math.E and Math.PI defined in the java.lang.Math class.

  1. Math.E: This constant represents the mathematical constant “e,” which is the base of the natural logarithm. It is approximately equal to 2.71828.
    java
    double eValue = Math.E;
  2. Math.PI: This constant represents the mathematical constant pi (π), which is the ratio of the circumference of a circle to its diameter. It is approximately equal to 3.14159.
    java
    double piValue = Math.PI;

These constants are part of the Java standard library and are frequently used in mathematical calculations.