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How Do I Create and Manipulate Matrices?
Author

Wolfram Research, Inc.
Organization: Wolfram Research, Inc.
Address: 100 Trade Center Dr.
Champaign, IL 61820
Phone: (217) 398-0700
Fax: (217) 398-0747
Email: infocenter@wolfram.com
URL: http://www.wolfram.com
Description

In Mathematica, vectors, matrices, and arrays of arbitrary dimensions are uniformly represented as lists or "lists of lists." This prevents a lot of problems common in other technical computing software in which users have to work with and convert between many different representations. For example, Maple uses array, matrix, vector, table, set, randmatrix, and so on.

Also available in Japanese
http://library.wolfram.com/howtos/matrix/index.ja.html
Subject

*Mathematica Technology > Kernel > Data Structures
URL

http://library.wolfram.com/howtos/matrix/
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matrix.nb (48.3 KB) - Mathematica Notebook
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matrixaddendum.nb (4 KB) - Mathematica Notebook