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13.2 The java.lang.Math class > 13.2.1 The constants defined in Math class


13.2.1 The constants defined in Math class

The Math class defines two mathematical constants, pi and e. They are declared as follows:

 

public final static double PI

public final static double E

 

Since both these variables final, they represent constant values. The actual values assigned to these constants are the approximations for the real mathematical constants. Since these two variables are public as well as static, they can be accessed directly using the class name as Math.Pi and Math.E.