palisades.lakes.bench.java.spaces.linear.r2

Class S2

java.lang.Object

palisades.lakes.bench.java.spaces.linear.r2.S2

All Implemented Interfaces:

Vector

public final class S2
extends Object
implements Vector

(Immutable) vector in R² represented by short x y coordinates.

Since:

2017-08-22

Version:

2017-09-05

Author:

palisades dot lakes at gmail dot com

Method Summary

Modifier and Type	Method and Description
static S2	generate(clojure.lang.IFn.L g) g is a 'function' of no arguments, which is expected to return a different value on each call, typically wrapping some pseudo-random number generator.
short	get0()
short	get1()
double	l1Norm() Here as a convenience.
Vector	linearCombination(Number a0, Number a1, Vector v1) Almost certainly would want scalars to be primitive, not Object references.
static S2	make(short v0, short v1)

Methods inherited from class java.lang.Object

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

Method Detail

get0

public final short get0()

get1

public final short get1()

linearCombination

public final Vector linearCombination(Number a0,
                                      Number a1,
                                      Vector v1)

Description copied from interface: Vector

Almost certainly would want scalars to be primitive, not Object references. And implementation might depend on coordinate type of Vectors, so potentially 6x6x6x6=1296 methods, more if high precision (BigInteger, Rational) reference types are included.

Here as a convenience. Doesn't belong in a vector interface, because same vector can be in many different linear spaces, with differing interpretations of linear combination.

Specified by:

linearCombination in interface Vector

l1Norm

public final double l1Norm()

Description copied from interface: Vector

Here as a convenience. Doesn't belong in a vector interface, because same vector can be in many different normed spaces.

Specified by:

l1Norm in interface Vector

make

public static final S2 make(short v0,
                            short v1)

generate

public static final S2 generate(clojure.lang.IFn.L g)

g is a 'function' of no arguments, which is expected to return a different value on each call, typically wrapping some pseudo-random number generator. Clojure unfortunately only supports functions returning primitive long and double values.

Throws:

an - exception if the generated value is not within the valid range.