Table of Contents

1. Java Math and Methods
   1. Methods
   2. Math Class

Java Math and Methods

Java provides a comprehensive set of mathematical functions and methods to perform various calculations. Let's explore these essential tools.

Methods

Methods are pre-defined functions that perform specific tasks. Here are some commonly used methods:

• Math.abs(x): Returns the absolute value of x.
• Math.ceil(x): Returns the smallest integer greater than or equal to x.
• Math.floor(x): Returns the largest integer less than or equal to x.
• Math.max(x, y): Returns the greater of x and y.
• Math.min(x, y): Returns the smaller of x and y.
• Math.pow(x, y): Returns x raised to the power of y.
• Math.sqrt(x): Returns the square root of x.

Math Class

The Math class in Java provides a wide range of mathematical constants and methods. You can access them using the class name, like Math.PI.

• Math.PI: Represents the mathematical constant pi (approximately 3.14159).
• Math.E: Represents the mathematical constant e (approximately 2.71828).
• Math.round(x): Returns the closest integer to x.
• Math.random(): Generates a random double value between 0.0 (inclusive) and 1.0 (exclusive).
• Math.sin(x), Math.cos(x), Math.tan(x): Trigonometric functions (x is in radians).

Summary

• Java provides a rich set of mathematical methods for common calculations.
• The Math class offers constants like pi and e, as well as methods for rounding, random number generation, and trigonometry.
• Understanding these methods will enhance your ability to perform complex mathematical operations in your Java programs.