E and PI are not functions, they're static fields (data members). That code will output their values correctly. You don't have to import anything, the Math class is in the java.lang package, which is imported by default. (It's the only package imported by default, I believe.)

Answer from T.J. Crowder on Stack Overflow
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Oracle
docs.oracle.com › javase › 8 › docs › api
Math (Java Platform SE 8 )
October 20, 2025 - JavaScript is disabled on your browser · Frame Alert · This document is designed to be viewed using the frames feature. If you see this message, you are using a non-frame-capable web client. Link to Non-frame version
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Jenkov
jenkov.com › tutorials › java › math-operators-and-math-class.html
Java Math Operators and Math Class
A commonly used math operation on variables is to set the variable equal to its own value plus another value. Here is how that looks: ... The second line of this example sets the sum variable equals to its own value (before being assigned the new value) + 20. Which means 10 + 20. Since adding a value to a variable is a very common operation, Java contains a built-in operator for that specific purpose.
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W3Schools
w3schools.com › java › java_math.asp
Java Math
assert abstract boolean break byte case catch char class continue default do double else enum exports extends final finally float for if implements import instanceof int interface long module native new package private protected public return requires short static super switch synchronized this throw throws transient try var void volatile while Java String Methods
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Java
download.java.net › java › early_access › panama › docs › api › java.base › java › math › package-summary.html
Package java.math
package java.math · Provides classes for performing arbitrary-precision integer arithmetic (BigInteger) and arbitrary-precision decimal arithmetic (BigDecimal). BigInteger is analogous to the primitive integer types except that it provides arbitrary precision, hence operations on BigIntegers ...
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Government of Ghana
blank.assurances.gov.gh › math › java-math-package.html
Java Math Package
June 14, 2023 - Web learn how to use the java math ... round, ceil, floor,. Web the class math contains methods for performing basic numeric operations such as the elementary exponential, logarithm,. Web learn how to use the java math class to ...
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Android Developers
developer.android.com › api reference › java.math
java.math | API reference | Android Developers
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Programiz
programiz.com › java-programming › library › math
Java Math Methods | Programiz
Java has a lot of Math methods that allow us to perform mathematical computations. In this reference page, you will find all the math methods available in Java.
Find elsewhere
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Scijava
javadoc.scijava.org › Java7 › java › math › package-use.html
Uses of Package java.math (Java Platform SE 7 )
Submit a bug or feature For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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DataCamp
datacamp.com › doc › java › java-math
Java Math
The Math class in Java is part of the java.lang package and provides a collection of methods for performing basic numeric operations such as exponential, logarithm, square root, and trigonometric calculations.
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GeeksforGeeks
geeksforgeeks.org › java › java-math-class
Java Math Class - GeeksforGeeks
July 23, 2025 - Java.lang.Math Class methods help to perform numeric operations like square, square root, cube, cube root, exponential and trigonometric operations.
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NIST
math.nist.gov › javanumerics › jama
JAMA: Java Matrix Package
We hope you will take the time to look at Jampack along with JAMA. There is much to be learned from both packages. JAMA is comprised of six Java classes: Matrix, CholeskyDecomposition, LUDecomposition, QRDecomposition, SingularValueDecomposition and EigenvalueDecomposition.
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GitHub
github.com › TilmanNeumann › java-math-library
GitHub - TilmanNeumann/java-math-library: A Java math library focused on number theory and integer factorization in particular.
v1.1: Faster sieve for large N, speedup close to factor 2 at 360 bit inputs. Improved Gaussian solvers (by Dave McGuigan), including a parallel Gaussian solver that outperforms Block-Lanczos until about 375 bit on a Ryzen 3900X with 20 threads. From now on, Java 9 is required!
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Forked by 8 users
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Java Almanac
javaalmanac.io › jdk › 1.2 › api › java › lang › Math.html
Java Platform 1.2 API Specification: Class Math
The class Math contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions. To help ensure portability of Java programs, the definitions of many of the numeric functions in this package require that they produce ...
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Classpath
developer.classpath.org › doc › java › lang › Math-source.html
Source for java.lang.Math (GNU Classpath 0.95 Documentation)
tive zero and the second argument is a 528: * negative finite odd integer, or the first argument is negative infinity 529: * and the second argument is a positive finite odd integer, then the result 530: * is negative infinity.</li> 531: * <li>If the first argument is less than zero and the second argument is a 532: * finite even integer, then the result is equal to the result of raising 533: * the absolute value of the first argument to the power of the second 534: * argument.</li> 535: * <li>If the first argument is less than zero and the second argument is a 536: * finite odd integer, then
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CodeGym
codegym.cc › java blog › java math › math pow() method in java
Math.pow() Method in Java
December 5, 2024 - Math pow can be found in the java.lang package as a method of the Math library. It is used to calculate the power of numbers, both integers as well as doubles.
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GeeksforGeeks
geeksforgeeks.org › java › math-class-methods-java-examples-set-2
Math class methods in Java with Examples | Set 2 - GeeksforGeeks
July 23, 2025 - Syntax: public static double log(double arg) Parameters: arg - argument passed. Returns: logarithmic value of the argument passed. Java code explaining floor(), hypot(), IEEEremainder(), log() method in Math class.
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Medium
medium.com › @toimrank › java-math-class-6ed5e23f2db0
Java Math Class. Java.lang.Math package in java provides… | by Imran Khan | Medium
September 21, 2022 - Java Math Class Java.lang.Math package in java provides Math class. Math class provides us some of the predefined method such as min, max, sqrt etc. Below are the examples of some of the methods from …
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DevDoc
devdoc.net › javaxe › jdk8api › java › math › package-use.html
Uses of Package java.math (Java Platform SE 8 )
Submit a bug or feature For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.