Vector (math 0.4 API)

```
public interface Vector
```
A mathematical vector.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`double`	`at(int i)` Return the element at index i, where indexing begins at 0.
`double`	`dotProduct(Vector other)` Compute and return the dot product of this vector and the given vector.
`double[]`	`elements()` The elements of the vector as an array of primitive doubles.
`static Vector`	`from(double... elements)` Create a new vector from the given elements.
`Vector`	`minus(double scalar)` Subtract the given scalar from this vector and return the resulting vector.
`Vector`	`minus(Vector other)` Subtract the given vector from this vector and return the resulting vector.
`double`	`norm()` Compute and return the L2 length of this vector.
`static Vector`	`ones(int n)` Create a new vector of ones with the given size.
`Matrix`	`outerProduct(Vector other)` Compute and return the outer product of this vector and the given vector.
`Vector`	`plus(Vector other)` Add this vector to the given vector and return the resulting vector.
`Vector`	`push(double value)` Push the provided value to the front of this vector and return the resulting vector.
`Vector`	`scaledBy(double alpha)` Scale this vector by the given scalar and return the resulting vector.
`int`	`size()` The number of elements in this vector.
`double`	`sum()` Compute and return the sum of the elements of this vector.
`double`	`sumOfSquares()` Compute and return the sum of squared elements of this vector.
`static Vector`	`zeros(int n)` Create a new vector of zeros with the given size.

- Method Detail
  - ones
```
static Vector ones(int n)
```
    Create a new vector of ones with the given size.
    
    Parameters:
    
    n - the size of the new vector.
    
    Returns:
    
    a new vector of ones with the given size.
  - zeros
```
static Vector zeros(int n)
```
    Create a new vector of zeros with the given size.
    
    Parameters:
    
    n - the size of the new vector.
    
    Returns:
    
    a new vector of zeros with the given size.
  - from
```
static Vector from(double... elements)
```
    Create a new vector from the given elements.
    
    Parameters:
    
    elements - the elements of the new vector.
    
    Returns:
    
    a new vector with the given elements.
  - elements
```
double[] elements()
```
    The elements of the vector as an array of primitive doubles.
    
    Returns:
    
    the elements of the vector as an array of primitive doubles.
  - at
```
double at(int i)
```
    Return the element at index i, where indexing begins at 0.
    
    Parameters:
    
    i - the index of the element.
    
    Returns:
    
    the element at index i, where indexing begins at 0.
  - size
```
int size()
```
    The number of elements in this vector.
    
    Returns:
    
    the number of elements in this vector.
  - plus
```
Vector plus(Vector other)
```
    Add this vector to the given vector and return the resulting vector.
    
    Parameters:
    
    other - the vector to add to this vector.
    
    Returns:
    
    this vector added to the given vector.
  - minus
```
Vector minus(Vector other)
```
    Subtract the given vector from this vector and return the resulting vector.
    
    Parameters:
    
    other - the vector to subtract from this vector.
    
    Returns:
    
    this vector subtracted by the given vector.
  - minus
```
Vector minus(double scalar)
```
    Subtract the given scalar from this vector and return the resulting vector.
    
    Parameters:
    
    scalar - the scalar to subtract from this vector.
    
    Returns:
    
    this vector subtracted by the given scalar.
  - scaledBy
```
Vector scaledBy(double alpha)
```
    Scale this vector by the given scalar and return the resulting vector.
    
    Parameters:
    
    alpha - the scalar to scale this vector by.
    
    Returns:
    
    this vector scaled by the given scalar.
  - dotProduct
```
double dotProduct(Vector other)
```
    Compute and return the dot product of this vector and the given vector.
    
    Parameters:
    
    other - the vector to take the dot product with.
    
    Returns:
    
    the dot product of this vector and the given vector.
  - outerProduct
```
Matrix outerProduct(Vector other)
```
    Compute and return the outer product of this vector and the given vector.
    
    Parameters:
    
    other - the vector to compute the outer product of this vector with.
    
    Returns:
    
    the outer product of this vector and the given vector.
  - norm
```
double norm()
```
    Compute and return the L2 length of this vector.
    
    Returns:
    
    the L2 length of this vector.
  - sum
```
double sum()
```
    Compute and return the sum of the elements of this vector.
    
    Returns:
    
    the sum of the elements of this vector.
  - sumOfSquares
```
double sumOfSquares()
```
    Compute and return the sum of squared elements of this vector.
    
    Returns:
    
    the sum of squared elements of this vector.
  - push
```
Vector push(double value)
```
    Push the provided value to the front of this vector and return the resulting vector.
    
    Parameters:
    
    value - the value to push to the front of the vector.
    
    Returns:
    
    a vector with the provided value pushed to the front of this vector.

Interface Vector

Method Summary

Method Detail

ones

zeros

from

elements

at

size

plus

minus

minus

scaledBy

dotProduct

outerProduct

norm

sum

sumOfSquares

push