edu.princeton.cs.introcs

Class Vector

java.lang.Object

edu.princeton.cs.introcs.Vector

public class Vector
extends Object

Compilation: javac Vector.java Execution: java Vector Implementation of a vector of real numbers. This class is implemented to be immutable: once the client program initialize a Vector, it cannot change any of its fields (N or data[i]) either directly or indirectly. Immutability is a very desirable feature of a data type. % java Vector x = (1.0, 2.0, 3.0, 4.0) y = (5.0, 2.0, 4.0, 1.0) x + y = (6.0, 4.0, 7.0, 5.0) 10x = (10.0, 20.0, 30.0, 40.0) |x| = 5.477225575051661 = 25.0 |x - y| = 5.0990195135927845 Note that java.util.Vector is an unrelated Java library class.

Constructor Summary

Constructors

Constructor and Description
Vector(double[] data)
Vector(int N)

Method Summary

Methods

Modifier and Type	Method and Description
double	cartesian(int i)
Vector	direction()
double	distanceTo(Vector that)
double	dot(Vector that)
int	length()
double	magnitude()
static void	main(String[] args)
Vector	minus(Vector that)
Vector	plus(Vector that)
Vector	times(double factor)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Vector

public Vector(int N)

Vector

public Vector(double[] data)

Method Detail

length

public int length()

dot

public double dot(Vector that)

magnitude

public double magnitude()

distanceTo

public double distanceTo(Vector that)

plus

public Vector plus(Vector that)

minus

public Vector minus(Vector that)

cartesian

public double cartesian(int i)

times

public Vector times(double factor)

direction

public Vector direction()

toString

public String toString()

Overrides:

toString in class Object

main

public static void main(String[] args)