no.uib.cipr.matrix

Enum Vector.Norm

java.lang.Object

java.lang.Enum<Vector.Norm>

no.uib.cipr.matrix.Vector.Norm

All Implemented Interfaces:

Serializable, Comparable<Vector.Norm>

Enclosing interface:

Vector

public static enum Vector.Norm
extends Enum<Vector.Norm>

Supported vector-norms. The difference between the two 2-norms is that one is fast, but can overflow, while the robust version is overflow resistant, but slower.

Enum Constant Summary

Enum Constants

Enum Constant and Description
Infinity Largest entry in absolute value
One Sum of the absolute values of the entries
Two The root of sum of squares
TwoRobust As the 2 norm may overflow, an overflow resistant version is also available.

Method Summary

Modifier and Type	Method and Description
static Vector.Norm	valueOf(String name) Returns the enum constant of this type with the specified name.
static Vector.Norm[]	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

One

public static final Vector.Norm One

Sum of the absolute values of the entries

Two

public static final Vector.Norm Two

The root of sum of squares

TwoRobust

public static final Vector.Norm TwoRobust

As the 2 norm may overflow, an overflow resistant version is also available. Note that it may be slower.

Infinity

public static final Vector.Norm Infinity

Largest entry in absolute value

Method Detail

values

public static Vector.Norm[] 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 (Vector.Norm c : Vector.Norm.values())
    System.out.println(c);

Returns:

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

valueOf

public static Vector.Norm valueOf(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:

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

NullPointerException - if the argument is null