fr.cnes.sirius.patrius.math.analysis.function

Class CosineFunction

java.lang.Object

fr.cnes.sirius.patrius.math.analysis.function.CosineFunction

All Implemented Interfaces:

UnivariateDifferentiableFunction, UnivariateFunction, Serializable

public class CosineFunction
extends Object
implements UnivariateDifferentiableFunction

Cosine function of the form c.cos(f(x)) with f an univariate function that returns an angle in radians.

Since:

4.7

Author:

Emmanuel Bignon

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CosineFunction(double c, UnivariateDifferentiableFunction f) Constructor.

Method Summary

Modifier and Type	Method and Description
String	toString()
DerivativeStructure	value(DerivativeStructure t) Simple mathematical function.
double	value(double x) Compute the value of the function.

Methods inherited from class java.lang.Object

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

Constructor Detail

CosineFunction

public CosineFunction(double c,
                      UnivariateDifferentiableFunction f)

Constructor. Generic formula for cosine function is c.cos(f(x))

Parameters:

c - multiplicative coefficient

f - an univariate function that returns an angle in radians

Method Detail

value

public double value(double x)

Compute the value of the function.

Specified by:

value in interface UnivariateFunction

Parameters:

x - Point at which the function value should be computed.

Returns:

the value of the function.

value

public DerivativeStructure value(DerivativeStructure t)

Simple mathematical function.

UnivariateDifferentiableFunction classes compute both the value and the first derivative of the function.

Assumes t is has only one variable

Specified by:

value in interface UnivariateDifferentiableFunction

Parameters:

t - function input value

Returns:

function result

toString

public String toString()

Overrides:

toString in class Object