41. Statistical Software - Dirk Enzmann's Gimmicks Programs written in Pascal for Windows and SPSSmacros including random eigenvalues, collapsing correlation matrices and standard deviations from several independent samples, and statistical tests. http://www.kfn.de/softwareenzmann.html

Statistical Software - Dirk Enzmann's gimmicks Below you find some small programs and SPSS macros I wrote for special calculations in statistical analyses. The programs are written in Pascal 7.0 and run under Windows (3.x, Win9x, Win-NT4). The programs can be downloaded and spread without further permission under the condition that they remain unchanged. They have been tested as virus free. The author is not liable to any damages caused by their use. Comments on improvements are welcome. BetaDiff: For calculating confidence intervals and testing the significance of the difference of two beta-coefficients from independent samples BetaDiff.exe description download Center: SPSS macro for centering a set of variables (with listwise deletion of missing cases); useful for computing products of variables for interaction terms in regression analyses Center.sps download CorrTot: For computing pooled means, standard deviations and a pooled correlation matrix from means, standard deviations and correlation matrices of two independent samples CorrTot.zip

42. Rotation Matrix -- From MathWorld In , rotations about the x, y-, and z-axes in a clockwise direction when looking towards the origin give the matrices, (5). Let and be two orthogonal matrices. http://mathworld.wolfram.com/RotationMatrix.html

INDEX Algebra Applied Mathematics Calculus and Analysis Discrete Mathematics ... Alphabetical Index ABOUT THIS SITE About MathWorld About the Author DESTINATIONS What's New MathWorld Headline News Random Entry ... Live 3D Graphics CONTACT Email Comments Contribute! Sign the Guestbook MATHWORLD - IN PRINT Order book from Amazon Algebra Linear Algebra Matrices ... Animated GIFs Rotation Matrix When discussing a rotation , there are two possible conventions: rotation of the axes and rotation of the object relative to fixed axes. In let a curve be rotated by a clockwise angle so that the original axes of the curve are and and the new axes of the curve are and The matrix transforming the original curve to the rotated curve, referred to the original and axes, is i.e., On the other hand, let the axes with respect to which a curve is measured be rotated by a clockwise angle so that the original axes are and and the new axes are and Then the matrix transforming the coordinates of the curve with respect to and is given by the matrix transpose of the above matrix: i.e.

43. Hadamard Matrix -- From MathWorld Brenner 1972), namely . An equivalent definition of the Hadamard matrices is given by, (1). where is the identity matrix. A Hadamard http://mathworld.wolfram.com/HadamardMatrix.html

INDEX Algebra Applied Mathematics Calculus and Analysis Discrete Mathematics ... Alphabetical Index ABOUT THIS SITE About MathWorld About the Author DESTINATIONS What's New MathWorld Headline News Random Entry ... Live 3D Graphics CONTACT Email Comments Contribute! Sign the Guestbook MATHWORLD - IN PRINT Order book from Amazon Algebra Linear Algebra Matrices ... Unsolved Problems Hadamard Matrix A Hadamard matrix is a type of square (-1,1)-matrix invented by Sylvester (1867) under the name of anallagmatic pavement, 26 years before Hadamard (1893) considered them. In a Hadamard matrix, placing any two columns or rows side by side gives half the adjacent cells the same sign and half the other sign, with the additional rule that an L -shaped "half-frame" bordering the matrix on two sides and composed entirely of 1s is omitted from the counts. When viewed as pavements, cells with 1s are colored black and those with -1s are colored white. Therefore, the Hadamard matrix must have white squares (-1s) and black squares (1s). A Hadamard matrix of order n is a solution to Hadamard's maximum determinant problem , i.e., has the maximum possible

44. R.F. Systems Home Page Manufacturer Of Audio Video Routing Equipment Manufacturer of audio and video routers such as matrices, input selectors, switches, distribution amps and triggered power outlets. http://www.rfsystems.com

Manufacturer of High-end and Commercial Audio/Video Routing Equipment The R.F. Systems line of products is now exclusively manufactured and sold by Clear Blue Audio Video To place orders or become a dealer please visit them through this link. Support Files Contact us What's New Product Design and Manufacturing ... Industry Links Our RC-8-MX series now has volume limiting features on every output. This allows you to set each output with a different maximum volume level. This highly requested feature is now included in all shipping matrices and can be retro-fitted into all existing units. Now Shipping! All the RC-8-MX series will include the following features of the new RC-8-32MX: Linear or Logarithmic Volume Control Mute Toggle Ability to disable user input from the front panel Improved IR control Our RC-8-32MX Series has started shipping in the following sizes: 32 in x 8 out - composite BNC video, balanced audio ($13795 list) 16 in x 32 out - s-vhs BNC video, balanced audio ($16995 list) We can make sub-sets of the product above. Call for details and pricing

45. Matrices matrices. de telrij van 3 3, 6, 9, , 30. Zetten we bij telrijen de getallen naast of onder elkaar, bij matrices doen we beide,. http://www.pandd.demon.nl/matrices.htm

Matrices Definitie Bewerkingen Eigenschappen Determinanten ... Vergelijkingen Wat is een matrix Een matrix (meervoud: matrices of matrixen) is in principe een eenvoudig wiskundig begrip, dat baseerd is op een eindige rij getallen, zoals de telrij van 3: 3, 6, 9, ..., 30. Zetten we bij telrijen de getallen naast of onder elkaar, bij matrices doen we beide, Definitie Een matrix is een rij reële getallen die gerangschikt zijn in rijen en kolommen. Om aan te geven dat er sprake is van een matrix worden de tekens [ en ] (of soms ook ( en )) gebruikt (zie figuur 1 en 2). Als m het aantal rijen en n het aantal kolommen is spreekt men van een mxn -matrix of ook van een (m,n)-matrix Is m n , dan is er sprake van een vierkante matrix. Het aantal rijen (of kolommen) heet dan de orde van de vierkante matrix. Een kolom van een matrix wordt ook wel kolomvector ; een rij van een matrix heet ook wel rijvector De (p,q)- en de (m,n)-matrix zijn van hetzelfde type (of van dezelfde vorm ) als p m en q n Hebben we bijvoorbeeld 6 getallen, dan kunnen we deze getallen rangschikken als

46. MATLAB Automated Testing Tool Software to generate test matrices, execute simulations of a particular superblock, capture the simulation output, and support analysis of the output. http://www.cs.umt.edu/RTSL/matt/

What is MATT? MATT History Why MATT is Being Developed? ... News What is MATT? If you have any questions or comments, we can be reached at the following addresses: Project Leader: Joel Henry MATT Customer Support Web Support: Spencer Wolny

47. Matrices, Vector Spaces, And Information Retrieval Mathematics. matrices, Vector Spaces, and Information Retrieval. Michael W. Berry, Zlatko Drmac, Elizabeth R. Jessup. Abstract. The http://epubs.siam.org/sam-bin/dbq/article/34703

SIAM Review Volume 41, Number 2 pp. 335-362 Matrices, Vector Spaces, and Information Retrieval Michael W. Berry, Zlatko Drmac, Elizabeth R. Jessup Abstract. The evolution of digital libraries and the Internet has dramatically transformed the processing, storage, and retrieval of information. Efforts to digitize text, images, video, and audio now consume a substantial portion of both academic and industrial activity. Even when there is no shortage of textual materials on a particular topic, procedures for indexing or extracting the knowledge or conceptual information contained in them can be lacking. Recently developed information retrieval technologies are based on the concept of a vector space. Data are modeled as a matrix, and a user's query of the database is represented as a vector. Relevant documents in the database are then identified via simple vector operations. Orthogonal factorizations of the matrix provide mechanisms for handling uncertainty in the database itself. The purpose of this paper is to show how such fundamental mathematical concepts from linear algebra can be used to manage and index large text collections. Key words.

48. Home A Huffman like algorithm that uses triangular matrices, rather than binary trees, for string substitution. Free source code available. http://in.geocities.com/iamthebiggestone

Welcome to the L.B.E. project Homepage. L.B.E or Location Based Encoding is a lossless compression algorithm created by Chitaranjan Arun Shankar and Niyant . The implementation of the algorithm is free and can be downloaded over here . However we would like to be contacted if you plan to use the code in a commercial project. To see how LBE actually works visit this page Members Archive How LBE WORKS ... Home For problems or questions regarding this project contact iamthebiggestone@yahoo.co.in Last updated: August 11, 2001.

49. The Efficient Computation Of Sparse Jacobian Matrices Using Automatic Differenti The Efficient Computation of Sparse Jacobian matrices Using Automatic Differentiation. Thomas F. Coleman, Arun Verma. Abstract. This http://epubs.siam.org/sam-bin/dbq/article/29534

SIAM Journal on Scientific Computing Volume 19, Number 4 pp. 1210-1233 The Efficient Computation of Sparse Jacobian Matrices Using Automatic Differentiation Thomas F. Coleman, Arun Verma Abstract. This paper is concerned with the efficient computation of sparse Jacobian matrices of nonlinear vector maps using automatic differentiation (AD). Specifically, we propose the use of a graph coloring technique, bicoloring, to exploit the sparsity of the Jacobian matrix J and thereby allow for the efficient determination of J using AD software. We analyze both a direct scheme and a substitution process. We discuss the results of numerical experiments indicating significant practical potential of this approach. Key words. sparse Jacobian matrices, nonlinear systems of equations, nonlinear least squares, graph coloring, bicoloring, automatic differentiation, computational differentiation, sparse finite differencing, partition problem, NP-complete problems, ADOL-C AMS Subject Classifications DOI Retrieve PostScript document ( 29534.ps : 571699 bytes) Retrieve GNU Compressed PostScript document ( ... Retrieve reference links For additional information contact service@siam.org

50. S.O.S. Math Contains tutorials covering algebra, trigonometry, calculus, differential equations, matrices, and complex variables. Reviews the most important results, techniques and formulas. Presented in worksheet format and require active participation. Includes practice quizzes and forum board. http://www.sosmath.com/

Algebra Trigonometry Calculus Differential Equations ... CyberBoard Search our site! S.O.S. Math on CD Sale! Only $19.95. Works for PCs, Macs and Linux. Tell a Friend about S.O.S. Books We Like Math Sites on the WWW S.O.S. Math Awards ... Privacy Concerns? var version = 1.0; var version = 1.1; var version = 1.2; var version = 1.3; S.O.S. MATHematics is your free resource for math review material from Algebra to Differential Equations! The perfect study site for high school, college students and adult learners. Get help to do your homework, refresh your memory, prepare for a test, .... Browse our more than 2,500 Math pages filled with short and easy-to-understand explanations - from simplifying fractions to the cubic formula , from the quadratic equation to Fourier series , from the sine function to systems of differential equations - this is the one stop site for your math needs. You want more? Check out our CyberExams to prepare for a test, or ask a question on our popular CyberBoard ! You can buy a personal copy of our site on CD, or browse our recommended book list Contact us Math Medics, LLC. - P.O. Box 12395 - El Paso TX 79913 - USA

51. Orquest, Inc. Orthobionics implantable and injectable matrices for bone repair and healing. http://www.orquest.com/

52. ThinkQuest : Library : Math For Morons Like Us On this page we hope to clear up problems that you might have with matrices. _ _ 2x y _ 4x -y _ . Back to top. Take the Quiz on matrices. http://library.thinkquest.org/20991/alg2/matrices.html

Index Math Math for Morons like Us Have you ever been stuck on math? If it was a question on algebra, geometry, or calculus, you might want to check out this site. It's all here from pre-algebra to calculus. You'll find tutorials, sample problems, and quizzes. There's even a question submittal section, if you're still stuck. A formula database gives quick access and explanations to all those tricky formulas. Languages: English. Visit Site 1998 ThinkQuest Internet Challenge Languages English Students J. Robert Davis High School Library, Kaysville, UT, United States John Davis High School Library, Kaysville, UT, United States Garrett Davis High School Library, Kaysville, UT, United States Coaches Jeff Davis High School Library, Kaysville, UT, United States Want to build a ThinkQuest site? The ThinkQuest site above is one of thousands of educational web sites built by students from around the world. Click here to learn how you can build a ThinkQuest site. Privacy Policy

53. Matrix Calculator Java applet based online Matrix calculation program for analyzing various simultaneous equations. http://www.mathpad.com/public/htmls/main/left/matrix/MatrixInfo.html

Info Help Applet Load Home Matrix Calculator Language JAVA - SDK1.3 Version Last Update Author MathPad Software Corp. Description MathPad Matrix Calculator is a simple, low cost utility for manipulating matrices of real numbers. It is as easy to use as a pocket calculator, but can perform most standard matrix operations for matrices. Matrix Calculator is aimed at teachers preparing coursework, students, or anyone who needs to work practically with matrices, simultaneous equations, etc. Linear algebra, sometimes disguised as matrix theory, considers sets and functions which preserve linear structure. In practice this includes a very wide portion of mathematics! Thus linear algebra includes axiomatic treatments, computational matters, algebraic structures, and even parts of geometry; moreover, it provides tools used for curve fitting, analyzing differential equations, statistical processes, and even physical phenomena. Capability MathPad Matrices Calculator allows you to get the determinant, inverse, and transpose of matrix as well as the four arithmetical operations for matrices.

54. 11th International Workshop On Matrices And Statistics, EIWMS 2002 In celebration of George P.H. Styan's 65th birthday. Lyngby, Denmark, 2931 August 2002. Online registration. http://www.imm.dtu.dk/matrix02/

55. The Math Forum - Math Library - Matrices This page contains sites relating to matrices. Browse and Search the Library Home Math Topics Algebra Linear Algebra matrices. http://mathforum.org/library/topics/matrices/

Browse and Search the Library Home Math Topics Algebra Linear Algebra : Matrices Library Home Search Full Table of Contents Suggest a Link ... Library Help Selected Sites (see also All Sites in this category Linear and Multilinear Algebra; Matrix Theory (Finite and Infinite) - Dave Rusin; The Mathematical Atlas A short article designed to provide an introduction to linear and multilinear algebra and matrix theory. As presented to engineers and as the subject of much numerical analysis, this subject is Matrix Theory. To an algebraist or geometer, it is the theory of Vector Spaces. Linear algebra, sometimes disguised as matrix theory, considers sets and functions which preserve linear structure. In practice this includes a very wide portion of mathematics; thus linear algebra includes axiomatic treatments, computational matters, algebraic structures, and even parts of geometry; moreover, it provides tools used for analyzing differential equations, statistical processes, and even physical phenomena. History, applications and related fields and subfields; textbooks, reference works, and tutorials; software and tables; other web sites with this focus. more>> Matrices and Determinants - MacTutor Math History Archives Linked essay describing the history of matrices and determinants from the 2nd century B.C. through the early 20th century, with 13 references (books/articles).

56. The Yacas Computer Algebra System Acronym for Yet Another Computer Algebra System, an opensource software package. Supports arbitrary precision arithmetic, matrices, and differential and integral calculus. http://www.xs4all.nl/~apinkus/yacas.html

Yacas is a general purpose easy to use Computer Algebra System (a CAS is a program that can be used to do symbolic manipulation of mathematical expressions). It is built on top of its own programming language designed for this purpose, in which new algorithms can easily be implemented. In addition, it comes with extensive documentation on the functionality implemented and methods used to implement them. This entire site (including the documentation) can also be found in the source code distribution

57. Math Forum - Ask Dr. Math What is the inverse of a matrix, and how do you find it? How do you multiply two matrices together? Questions about matrices. Date http://mathforum.org/library/drmath/view/55464.html

Associated Topics Dr. Math Home Search Dr. Math Questions about Matrices Date: 27 Feb 1995 21:54:27 -0500 From: Steve Toub Subject: Re: Re: A matrix and its inverse Ken- Thank you so much for your help with matrices. I totally understand the multiplication part now, and I understand the idea of an inverse and what it is, but not how to find it. Is there some sort of formula or equation to finding an inverse? The reason that I am asking these questions is that I am in the process of writing a shareware math stack for High School aged kids. The programming part is easy, it is the math that I have a little knowledge problem with. By the way, if I ever get the program done, I will be sure to include your name under the credits. Thanks, Steve Associated Topics High School Linear Algebra Search the Dr. Math Library: Find items containing (put spaces between keywords): Click only once for faster results: [ Choose "whole words" when searching for a word like age. all keywords, in any order at least one

58. Linear Algebra And Econometrics SPARSEM is a collection of sparse matrix classes that makes programming with sparse matrices (and large problems) almost as easy as a matrix language. BLUPF90 is a BLUP program written using SPARSEM. REMLF90 is a REML version of BLUPF90 that uses accelerated EM algorithm. Other programs included are dense matrix module DENSEOP, Gibbs sampling program GIBBS90, and several versions of linearthreshold models. By Ignacy Misztal and collaborators. http://nce.ads.uga.edu:80/~ignacy/numpub/blupf

59. TICAL - Technology Information Center For Administrative Leadership Website problems? Email the webmaster. matrices. The matrices. The following matrices provide additional ways to enter our resource database http://www.portical.org/matrix.html

dqmcodebase = "http://www.portical.org/script/" //script folder location For Administrators, By Administrators June 5, 2004, 10:38 pm PST Quick Fact: In the 1998 NAEP Civics Assessment, for both 4th and 8th grade students, Internet use was associated with higher average scores. Quote: If you are well-educated, technology is your friend. If you do not have a good education, technology is rapidly replacing you. Robert Reich Website problems? Email the webmaster Matrices The Matrices Each resource matrix provides a quick and easy way to find specific types of resources related to various technology leadership topics. In each matrix, the left column contains sub-categories related to the given topic. The columns to the right contain icons that represent different types of resources: publications, models/examples, people/organizations, hardware/software, and vendors. Read down the list of sub-categories, then move across the row and click on the icon for the resource type of your choice. TICAL Key Component Areas: Curriculum Integration Data Driven Decision Making Financial Planning Operations and Maintenance ... Technology Planning The following matrices provide additional ways to enter our resource database: Use this Matrix to locate resources as they relate to each of the six core areas adopted by ISTE and the TSSA Collaborative.

60. LONDON MATHEMATICAL SOCIETY INVITED LECTURE SERIES An LMS Invited Lecture series. Pierre van Moerbeke (Universite de Louvain and Brandeis University). Department of Applied Mathematics, University of Leeds, UK; 27 June 2 July 2002. http://maths.leeds.ac.uk/~vadim/LMS_course.htm

LONDON MATHEMATICAL SOCIETY INVITED LECTURE SERIES 2002 Random matrices, random permutations and integrable lattices Pierre van Moerbeke (Universite de Louvain and Brandeis University) held at School of Mathematics Department of Applied Mathematics University of Leeds Leeds ... UK June 27 - July 2, 2002 The 2002 LMS Lectures were given in Leeds. This series is held annually: a single speaker gives a course of 10 expository lectures, examining an important topic in depth, over a five days period. In the 2002 programme in Leeds there were two lectures by Professor van Moerbeke every morning. Associated afternoon sessions consisted of five invited lectures to complement the course. The lecture notes of the course will be published in one of the LMS venues. Description of the Course Programme Participants Programme Highlights 10 morning and 6 afternoon lectures The main feature was, of course, 10 morning lectures by Pierre van Moerbeke complemented by 5 afternoon lectures given by Alexei Borodin Yang Chen Alexander Its and Vladimir Kazakov Hardy Lecture on Friday afternoon, June 28

Page 3     41-60 of 182    Back | 1  | 2  | 3  | 4  | 5  | 6  | 7  | 8  | 9  | 10  | Next 20