Main Page | Namespace List | Class Hierarchy | Alphabetical List | Compound List | File List | Compound Members | File Members

BoxLayoutData.H File Reference

#include "LayoutData.H"
#include "Interval.H"
#include "FArrayBox.H"

Include dependency graph for BoxLayoutData.H:

Include dependency graph

This graph shows which files directly or indirectly include this file:

Included by dependency graph

Go to the source code of this file.

Compounds

class  AliasDataFactory
class  BoxLayoutData
 Data on a BoxLayout. More...

class  DataFactory
 Factory object to data members of a BoxLayoutData container. More...

class  DefaultDataFactory
 Factory object to data members of a BoxLayoutData container. More...

class  FABAliasDataFactory

Functions

Real norm (const BoxLayoutData< FArrayBox > &A, const Interval &interval, const int &p=2)


Function Documentation

Real norm const BoxLayoutData< FArrayBox > &  A,
const Interval interval,
const int &  p = 2
 

not actually L-p norms, since it doesn't take into account the dx of the system. A user can take that into account or not.

For p != 0, returns pth root of sum of pth powers over all points in all fabs and all components in the interval:

( sum [ |A[i][pt,var]|^p : FArrayBox A[i], point pt in A[i].box(), var in interval ] )^(1/p)

To turn into an L-p norm, one needs to multiply this by dx^(SpaceDim/p).

For p == 0, returns global max over all points in all fabs and all components in the interval:

max [ |A[i][pt,var]| : FArrayBox A[i], point pt in A[i].box(), var in interval ]

Some people don't like that this norm is not normalized based on number of points in A. Normalization is your problem.


Generated on Wed Jun 2 13:54:33 2004 for Chombo&INSwithParticles by doxygen 1.3.2