```
public final class R2Vector
extends Object
```
R2Vector represents a vector in the two-dimensional space. It defines the basic geometrical operations for 2D vectors, e.g. cross product, addition, norm, comparison etc.

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static R2Vector`	`add(R2Vector p1, R2Vector p2)`
`double`	`crossProd(R2Vector that)`
`double`	`dotProd(R2Vector that)`
`static double`	`dotProd(R2Vector p1, R2Vector p2)`
`boolean`	`equals(Object that)`
`double`	`get(int index)`
`int`	`hashCode()`	Calcualates hashcode based on stored coordinates.
`boolean`	`lessThan(R2Vector vb)`
`static R2Vector`	`mul(R2Vector p, double m)`
`double`	`norm2()`
`String`	`toString()`
`double`	`x()`
`double`	`y()`

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

public R2Vector(double x,
                double y)

public static R2Vector add(R2Vector p1,
                           R2Vector p2)

public static R2Vector mul(R2Vector p,
                           double m)

public static double dotProd(R2Vector p1,
                             R2Vector p2)

public double dotProd(R2Vector that)

public double crossProd(R2Vector that)

public boolean lessThan(R2Vector vb)

public boolean equals(Object that)

Class R2Vector