```
public class Vector
extends Object
```
An immutable data type to represent an n-dimensional vector.

Constructor Summary

Constructors
Constructor Description

Vector(double[] coords)
Constructs a vector given its components.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Vector`	`add(Vector other)`	Returns the sum of this vector and `other`.
`int`	`dimension()`	Returns the dimension of this vector.
`Vector`	`direction()`	Returns a unit vector in the direction of this vector.
`double`	`dot(Vector other)`	Returns the dot product of this vector and `other`.
`double`	`get(int i)`	Returns the ith component of this vector.
`double`	`magnitude()`	Returns the magnitude of this vector.
`static void`	`main(String[] args)`	Unit tests the data type.
`Vector`	`scale(double alpha)`	Returns a scaled (by factor `other`) copy of this vector.
`Vector`	`subtract(Vector other)`	Returns the difference of this vector and `other`.
`String`	`toString()`	Returns a string representation of this vector.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - Vector
```
public Vector(double[] coords)
```
    Constructs a vector given its components.
    
    Parameters:
    
    coords - the vector components.
- Method Detail
  - get
```
public double get(int i)
```
    Returns the ith component of this vector.
    
    Parameters:
    
    i - the component index.
    
    Returns:
    
    the ith component of this vector.
  - add
```
public Vector add(Vector other)
```
    Returns the sum of this vector and other.
    
    Parameters:
    
    other - the other vector.
    
    Returns:
    
    the sum of this vector and other.
  - subtract
```
public Vector subtract(Vector other)
```
    Returns the difference of this vector and other.
    
    Parameters:
    
    other - the other vector.
    
    Returns:
    
    the difference of this vector and other.
  - dot
```
public double dot(Vector other)
```
    Returns the dot product of this vector and other.
    
    Parameters:
    
    other - the other vector.
    
    Returns:
    
    the dot product of this vector and other.
  - scale
```
public Vector scale(double alpha)
```
    Returns a scaled (by factor other) copy of this vector.
    
    Parameters:
    
    alpha - the scale factor.
    
    Returns:
    
    a scaled (by factor other) copy of this vector.
  - direction
```
public Vector direction()
```
    Returns a unit vector in the direction of this vector.
    
    Returns:
    
    a unit vector in the direction of this vector.
  - magnitude
```
public double magnitude()
```
    Returns the magnitude of this vector.
    
    Returns:
    
    the magnitude of this vector.
  - dimension
```
public int dimension()
```
    Returns the dimension of this vector.
    
    Returns:
    
    the dimension of this vector.
  - toString
```
public String toString()
```
    Returns a string representation of this vector.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    a string representation of this vector.
  - main
```
public static void main(String[] args)
```
    Unit tests the data type.
    
    Parameters:
    
    args - the command-line arguments.

Class Vector

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Vector

Method Detail

get

add

subtract

dot

scale

direction

magnitude

dimension

toString

main