com.numericalmethod.suanshu.analysis.differentiation.univariate
Enum Dfdx.Method

java.lang.Object
  java.lang.Enum<Dfdx.Method>
      com.numericalmethod.suanshu.analysis.differentiation.univariate.Dfdx.Method

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Dfdx.Method>

Enclosing class:

Dfdx

public static enum Dfdx.Method
extends java.lang.Enum<Dfdx.Method>

the methods available to compute numerical derivatives

Enum Constant Summary

FINITE_DIFFERENCE
finite difference: an approximation of a derivative using grid points

RIDDERS
Ridders' method: try a sequence of decreasing increments to the compute derivative, and then extrapolate to zero using Neville's algorithm.

Method Summary

static Dfdx.Method	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static Dfdx.Method[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

FINITE_DIFFERENCE

public static final Dfdx.Method FINITE_DIFFERENCE

finite difference: an approximation of a derivative using grid points

See Also:

FiniteDifference

RIDDERS

public static final Dfdx.Method RIDDERS

Ridders' method: try a sequence of decreasing increments to the compute derivative, and then extrapolate to zero using Neville's algorithm.

This method in general gives a better approximation.

See Also:

Ridders

Method Detail

values

public static Dfdx.Method[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Dfdx.Method c : Dfdx.Method.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Dfdx.Method valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null