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

Class F2

java.lang.Object

palisades.lakes.bench.java.spaces.linear.r2.F2

All Implemented Interfaces:

Vector

public final class F2
extends Object
implements Vector

(Immutable) vector in R² represented by float 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 F2	generate(clojure.lang.IFn.D 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.
float	get0()
float	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 F2	make(float v0, float v1)

Methods inherited from class java.lang.Object

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

Method Detail

get0

public final float get0()

get1

public final float 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 F2 make(float v0,
                            float v1)

generate

public static final F2 generate(clojure.lang.IFn.D 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.