mikera.vectorz.ops

Class LogN

java.lang.Object

mikera.vectorz.Op

mikera.vectorz.ops.AFunctionOp

mikera.vectorz.ops.LogN

All Implemented Interfaces:

IOperator

public final class LogN
extends AFunctionOp

The renowned exponential function

Author:

Mike

Field Summary

Fields

Modifier and Type	Field and Description
static LogN	LOG10

Method Summary

Modifier and Type	Method and Description
double	apply(double x) Applies this operator to a single value, returning the result
double	applyInverse(double y) Applies the inverse of this Op.
static LogN	create(double base)
double	derivative(double x) Returns the derivative of this Op for a given input value x i.e.
double	derivativeForOutput(double y) Returns the derivative of this Op for a given output value y i.e.
double	getBase()
Op	getDerivativeOp() Gets an operator which represents the derivative of this operator.
Op	getInverse() Gets the inverse of this operator.
boolean	hasDerivative() Returns true if this operator supports computing the derivative for a given input
boolean	hasInverse() Returns true if this operator supports computing the inverse for a given output
double	minDomain()

Methods inherited from class mikera.vectorz.ops.AFunctionOp

averageValue

Methods inherited from class mikera.vectorz.Op

applyTo, applyTo, applyTo, applyTo, applyTo, applyTo, applyTo, applyTo, applyTo, compose, compose, constrainValues, divide, getTransform, hasDerivativeForOutput, isBounded, isDomainBounded, isStochastic, maxDomain, maxValue, minValue, product, sum, toString, validateOutput

Methods inherited from class java.lang.Object

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

Field Detail

LOG10

public static final LogN LOG10

Method Detail

create

public static LogN create(double base)

getBase

public double getBase()

apply

public double apply(double x)

Description copied from interface: IOperator

Applies this operator to a single value, returning the result

Specified by:

apply in interface IOperator

Specified by:

apply in class Op

Returns:

derivative

public double derivative(double x)

Description copied from class: Op

Returns the derivative of this Op for a given input value x i.e. f'(x) where f is the operator

Overrides:

derivative in class Op

Returns:

derivativeForOutput

public double derivativeForOutput(double y)

Description copied from class: Op

Returns the derivative of this Op for a given output value y i.e. f'(g(y)) where f is the operator, g is the inverse of f

Overrides:

derivativeForOutput in class Op

Returns:

applyInverse

public double applyInverse(double y)

Description copied from class: Op

Applies the inverse of this Op. Throws an error if the inverse function does not exist. Returns Double.NaN if no inverse exists for the specific value of y.

Overrides:

applyInverse in class Op

Returns:

hasDerivative

public boolean hasDerivative()

Description copied from class: Op

Returns true if this operator supports computing the derivative for a given input

Overrides:

hasDerivative in class Op

Returns:

hasInverse

public boolean hasInverse()

Description copied from class: Op

Returns true if this operator supports computing the inverse for a given output

Overrides:

hasInverse in class Op

Returns:

minDomain

public double minDomain()

Overrides:

minDomain in class Op

getInverse

public Op getInverse()

Description copied from interface: IOperator

Gets the inverse of this operator. Returns null if no inverse exists.

Specified by:

getInverse in interface IOperator

Overrides:

getInverse in class Op

Returns:

getDerivativeOp

public Op getDerivativeOp()

Description copied from class: Op

Gets an operator which represents the derivative of this operator. Returns nil if this cannot be computed or does not exist.

Overrides:

getDerivativeOp in class Op

Returns: