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Topic: List of matrices


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In the News (Mon 16 Nov 09)

  
  List of matrices - Wikipedia, the free encyclopedia
Alternating sign matrix — a generalization of permutation matrices that arises from Dodgson condensation.
Normal matrices are precisely the matrices to which the spectral theorem applies.
The set of all square matrices form an associative algebra with identity.
en.wikipedia.org /wiki/List_of_matrices   (1019 words)

  
 NationMaster - Encyclopedia: List of matrices   (Site not responding. Last check: 2007-10-31)
Matrices (Redirected from (0,1) matrix) A binary matrix or (0,1)-matrix is a matrix whose entries are all either zero or one.
In mathematics, a block diagonal matrix is a block matrix which is a square matrix, and having main diagonal blocks square matrices, such that the off-diagonal blocks are zero matrices.
Adjacency matrices are binary matrices (for undirected graphs) which contain a 1 for element A(i,j) if there is an edge connecting node i to node j.
www.nationmaster.com /encyclopedia/List-of-matrices   (3834 words)

  
 Matrix (mathematics)   (Site not responding. Last check: 2007-10-31)
Matrices are useful to record data that on two categories and to keep track the coefficients of systems of linear equations and linear transformations.
Matrices over a polynomial ring are important in the study of control theory.
Certain special matrices are so important that are given special names as listed in list of matrices.
www.freeglossary.com /Matrix_(math)   (2102 words)

  
 Matrix (mathematics)   (Site not responding. Last check: 2007-10-31)
Matrices are useful to record data that depends on two categories, and to keep track of the coefficients of systems of linear equations and linear transformation s.
Matrices are said to anticommute if AB = -BA they are very important in representation s of Lie algebra s For other, less commonly encountered ways to multiply matrices, see matrix multiplication.
Matrices can conveniently represent linear transformations because matrix multiplication neatly corresponds to the composition of maps, as will be described next.
www.serebella.com /encyclopedia/article-Matrix_(mathematics).html   (2444 words)

  
 Matrix (mathematics) - InformationBlast
Matrices are useful to record data that depends on two categories, and to keep track of the coefficients of systems of linear equations and linear transformations.
Stochastic matrices are square matrices whose columns are probability vectors; they are used to define Markov chains.
If two m-by-n matrices A and B are given, we may define their sum A + B as the m-by-n matrix computed by adding corresponding elements, i.e., (A + B)[i, j] = A[i, j] + B[i, j].
www.informationblast.com /Matrix_%28mathematics%29.html   (1309 words)

  
 [ref] 24 Matrices
The rules for arithmetic operations involving matrices are in fact special cases of those for the arithmetic of lists, given in Section Arithmetic for Lists and the following sections, here we reiterate that definition, in the language of vectors and matrices.
A list of matrices over a field F is in semi-echelon form if the list of row vectors obtained on concatenating the rows of each matrix is a semi-echelonized matrix (see SemiEchelonMat).
Arithmetic operations (see Arithmetic for Lists and the following sections) preserve the compression status of matrices in the sense that if all arguments are compressed matrices written over the same field and the result is a matrix then also the result is a compressed matrix written over this field.
www.gap-system.org /Manuals/doc/htm/ref/CHAP024.htm   (4165 words)

  
 PHP: list - Manual
When re-using a variable name in list() that list() is being assigned to, instead of the values being assigned all at once, the reused variable gets overwritten before all the values are read.
This is a function simulair to that of 'list' it lists an array with the 'key' as variable name and then those variables contain the value of the key in the array.
This is a bit easier then list in my opinion since you dont have to list up all variable names and it just names them as the key.
www.php.net /manual/es/function.list.php   (824 words)

  
 [No title]
Thus stud-cols is a list of lists, instead of one long list as before.
Outputs is a list of the value of each school for the variable of interest, e.g., public school or not." (let* ((sampled-schools (samp-schl num))) (select-col sampled-schools var))) (defun samp-schl-var-2 (row-ind ind) "Args: (ROW-IND) (IND) Same idea as samp-schl-var, except the selected schools are specified by the user.
Outputs is a list of the value of each school for the variable of interest, e.g., public school or not." (let* ((sampled-schools (samp-schl-2 row-ind))) (select-col sampled-schools ind))) (defun rep-samp-schl-var (schools ind) "Args: (SCHOOLS) (IND) SCHOOLS is a list of lists of equal length, where each list contains the indices for a group of schools.
www.stat.ucla.edu /data/nels/grab-nels/nels-samp.lsp   (571 words)

  
 CS 340 - MP 3 - Matrices
The total number of matrices to be stored in your program is undefined; therefore you must have a dynamic storage class to hold the matrices.
This command is to produce a listing of the names and sizes of all matrices known to your program.
The matrices are to be listed sorted by the sizes (number of rows, then number of columns).
www.cs.uic.edu /~troy/fall01/cs340/mp3.html   (2174 words)

  
 SymList   (Site not responding. Last check: 2007-10-31)
Internally the symmetry list class is implemented as a single 2D matrix, where every 4 rows (remember that in 3D the geometrical transformation matrices are 4x4) comprise a symmetry matrix.
The former symmetry list is overwritten with the new one.
This is the number of the matrices which generated the structure, notice that it should be always less or equal to the total number of matrices in the subgroup.
es.embnet.org /~bioinfo/NewXmipp/Lib/Reconstruction/Docs/SymList.html   (639 words)

  
 Index notation   (Site not responding. Last check: 2007-10-31)
If two m-by-n matrices A and B are given, we may define their sum A +B as the m-by-n matrix computed by adding corresponding elements, i.e., (A + B)[i, j] =A[i, j] + B[i, j].
Multiplication of two matrices is well-defined only if the number of columns of the first matrix is the sameas the number of rows of the second matrix.
Matrices can conveniently represent lineartransformations because matrix multiplication neatly corresponds to the composition of maps, as will be described next.
www.therfcc.org /index-notation-215523.html   (1329 words)

  
 Matrices   (Site not responding. Last check: 2007-10-31)
It is not required that you setup and maintain a list of matrices to use Express.
Matrices can be created and used at any time, they do not have to be setup from the start, but it is recommended that you consider you matrices when creating your Zones in dispatch setup.
PandD Matrices are used in the LTL dispatch systems to pay a driver or outside carrier for performing pick-ups or deliveries within a service area without needing to assign the partial loads to individual Trips.
www.pcssoft.com /ExpHelp/sysMatrices.html   (1956 words)

  
 [ref] 22 Matrices   (Site not responding. Last check: 2007-10-31)
Matrices are represented in GAP by lists of row vectors (see Row Vectors).
Because matrices are just a special case of lists, all operations and functions for lists are applicable to matrices also (see chapter Lists).
Block matrices are a special representation of matrices which can save a lot of memory if large matrices have a block structure with lots of zero blocks.
www.math.psu.edu /local_doc/gap4/htm/ref/CHAP022.htm   (2165 words)

  
 libboa.chain Functions
List of matrices whose columns and rows contain the monitored parameters and the MCMC iterations, respectively.
List of matrices whose columns and rows contain the monitored parameters and the support (lower and upper limits), respectively.
List of numeric vectors giving the support for the parameters in each of the MCMC sequences.
www.public-health.uiowa.edu /BOA/libboa_chain.html   (1092 words)

  
 [No title]   (Site not responding. Last check: 2007-10-31)
This program operates as a session - there is always a listing of operations to perform, and then a list of matrices to perform that operation on.
The standard next prompt is a list of matrices to choose from: Available Matrices: 1:(4x4) math1.mat 2:(4x4) math2.mat 3:(4x4) math3.mat 4:(4x4) math4.mat 5:(4x4) math5.mat Choose which matrix to use by entering its numerical index at the next prompt.
To speed the process, especially with large matrices, there is a dynamically allocated table that holds the inverse of each and every number in the field.
www.people.fas.harvard.edu /~dpopper/fpc/manual.txt   (1722 words)

  
 math lessons - Matrix (mathematics)
In mathematics, a matrix (plural matrices) is a rectangular table of numbers or, more generally, of elements of a ring-like algebraic structure.
Note that fast matrix multiplication algorithms such as the Strassen algorithm generally only apply to matrices over rings and will not work for matrices over semirings that are not rings.
Matrices have a long history of application in solving linear equations.
www.mathdaily.com /lessons/Matrix_(mathematics)   (1494 words)

  
 36X36 {-1, +1} matrices of maximal determinant   (Site not responding. Last check: 2007-10-31)
The first and third Williamson matrix from her list are equivalent to the two matrices available in Sloane's Library of Hadamard Matrices.
These matrices form a subset of the 180 matrices on Spence's list of matrices related to regular two-graphs.
The list of 235 matrices analyzed in [O2] includes all of the above, as well as some additional matrices collected from the literature and other sources.
www.indiana.edu /~maxdet/d36.html   (303 words)

  
 [ref] 24 Matrices
A matrix is a list of lists of equal length whose entries lie in a common ring.
It is allowed that one operand is a finite field element, a finite field vector, a finite field matrix, or a list of finite field matrices, and the other operand is an integer, an integer vector, an integer matrix, or a list of integer matrices.
is the length of the coefficient list, and
www.math.niu.edu /help/math/gap4/ref/CHAP024.htm   (3033 words)

  
 Tim Davis: UF Sparse Matrix Collection : sparse matrices from a wide range of applications   (Site not responding. Last check: 2007-10-31)
New matrices are always at the end of this list.
Sparse matrices from real applications are critical to the development of sparse matrix algorithms.
If you would like the next generation of sparse matrix methods to work well on matrices from your problem domain, then please submit matrices to the collection, at: http://www.cise.ufl.edu/~web-gfs (user "davis").
www.cise.ufl.edu /research/sparse/matrices   (480 words)

  
 Bio::Matrix::Substitution - Handler for substitution matrices
This module is the beginnings of a systematic capability in Bioperl to handle substitution matrices.
If an list of matrices is given as an argument, in a list context which of them is an available builtin matrix are returned.
Matrices are normally used as a hash-of-hashes (see perldsc), such as
cesario.rutgers.edu /easmith/computers/Bio-Matrix-Substitution.pm.html   (1427 words)

  
 [No title]
The result is a list {{e[i, j, a], p[i, j]...}, {{{d[1],0,..}, {0, d[2], 0,..}}}, {e[i, j, a], p[i, j]...}}.
The orginal matrix M is the product of all the matrices in the list in the order in which they are printed.
It is a standard theorem that all such matrices have a diagonal normal form.
www.willamette.edu /~zizza/Software/ElementaryDecompositions.m   (513 words)

  
 MatrixQuestion -- from Mathematica Information Center
This notebook allow the creation of a matrix of average values constructed from a list of data matrices.
In particular, it allows matrices which have no data in certain positions to be included.
There are also provisions for counting the number of "no data" entries in the list of matrices.
library.wolfram.com /infocenter/TechNotes/4098   (50 words)

  
 MMAKE
In the matrix case, the new matrix has the number of rows equal to the common number of rows of the matrices and the number of columns equal to the total number of columns.
MMAKE's first argument is the name to be given to the new matrix, followed by a list of series or matrices which will form the columns of the new matrix.
The number of series is limited only by the maximum size of the argument list (usually 2000 or more) and the space available in data storage for the new matrix.
www.tspintl.com /products/tsphelp/mmake.htm   (473 words)

  
 SDMetrics User Manual - Relation Matrices   (Site not responding. Last check: 2007-10-31)
Relation matrices show relations between individual design elements, for example, associations between actors and use cases, invocations between operations, etc. The rows of a relationship matrix show the source design elements from which the relationship originates, the columns contain the target design elements of the relation.
Appendix D: "List of Matrices" describes the relation matrices that SDMetrics calculates.
You can define and display additional relation matrices of your own, the procedure is described in Section 8.4 "Definition of Relation Matrices".
www.sdmetrics.com /manual/RelMat.html   (317 words)

  
 R: Extract corStruct Log-Determinant   (Site not responding. Last check: 2007-10-31)
This method function extracts the logarithm of the determinant of a square-root factor of the correlation matrix associated with
, or the sum of the log-determinants of square-root factors of the list of correlation matrices associated with
an optional covariate vector (matrix), or list of covariate vectors (matrices), at which values the correlation matrix, or list of correlation matrices, are to be evaluated.
www.utdallas.edu /~ammann/Rabundance/Rwin/library/nlme/html/logDet.corStruct.html   (93 words)

  
 G:\E-study\2005__Proj\src\MatrixList.java
* list of matrixes which are not alike in the sence of multiplication
* This method generates the matrixes to be entered to the list themselves and enters them to the list.
* This method checks wheather there are "proportional" matrices in the list generated, if there are, then the list is wrong.
www.cs.bgu.ac.il /~maximbi/projLPS/code/MatrixList.java.html   (117 words)

  
 MatrixList
This method checks wheather there are "proportional" matrices in the list generated, if there are, then the list is wrong.
This method generates the matrixes to be entered to the list themselves and enters them to the list.
The duty of the c-tor is to initialie whatever values need initialization and vreate a list of matrixes which are not alike in the sence of multiplication
www.cs.bgu.ac.il /~maximbi/projLPS/JavaDoc/MatrixList.html   (175 words)

  
 Syntax
This is a useful feature when the number of unknown matrices is not fixed a priori (see Example of Section 2.2.2).
It can also be a list of a mixture of matrices and lists which in turn contain values of LME's, and so on.
It can also be a list of a mixture of matrices and lists which in turn contain values of of LMI's, and so on.
pauillac.inria.fr /cdrom_a_graver/www/scilab/doc/lmidoc/node4.html   (317 words)

  
 Commands   (Site not responding. Last check: 2007-10-31)
Commands are used to perform specific system actions, such as storing and loading matrices and modules, or to perform special data processing requests.
If you are running short on available space, you can use commands to store matrices in the storage library, free the matrices of their values, and load them back later when you need them again, as shown in the following example.
List the names and attributes of all of your matrices with the SHOW NAMES command.
www.asu.edu /it/fyi/dst/helpdocs/statistics/sas/sasdoc/sashtml/iml/chap2/sect16.htm   (565 words)

  
 Matrix Chain Multiplication   (Site not responding. Last check: 2007-10-31)
Suppose you have to evaluate an expression like A*B*C*D*E where A,B,C,D and E are matrices.
Your job is to write a program that determines the number of elementary multiplications needed for a given evaluation strategy.
Input consists of two parts: a list of matrices and a list of expressions.
acm.uva.es /p/v4/442.html   (314 words)

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