gov.sandia.cognition.learning.function.scalar

Interface PolynomialFunction.ClosedForm

All Superinterfaces:

DifferentiableEvaluator<java.lang.Double,java.lang.Double,java.lang.Double>, DifferentiableUnivariateScalarFunction, Evaluator<java.lang.Double,java.lang.Double>, ScalarFunction<java.lang.Double>, UnivariateScalarFunction

All Known Implementing Classes:

AdaptiveRejectionSampling.LineSegment, PolynomialFunction.Cubic, PolynomialFunction.Linear, PolynomialFunction.Quadratic

Enclosing class:

PolynomialFunction

public static interface PolynomialFunction.ClosedForm
extends DifferentiableUnivariateScalarFunction

Describes functionality of a closed-form algebraic polynomial function

Method Summary

Modifier and Type	Method and Description
java.lang.Double[]	roots() Finds the real-valued roots (zero crossings) of the polynomial
java.lang.Double[]	stationaryPoints() Finds the real-valued stationary points (zero slope) maxima or minima of the polynomial

Methods inherited from interface gov.sandia.cognition.math.DifferentiableUnivariateScalarFunction

differentiate, differentiate

Methods inherited from interface gov.sandia.cognition.math.UnivariateScalarFunction

evaluate, evaluate, evaluateAsDouble

Method Detail

roots

java.lang.Double[] roots()

Finds the real-valued roots (zero crossings) of the polynomial

Returns:

Array of roots, will never be null

stationaryPoints

java.lang.Double[] stationaryPoints()

Finds the real-valued stationary points (zero slope) maxima or minima of the polynomial

Returns:

Array of stationary points, will never be null