(data structure)

**Definition:**
A two-dimensional array. By convention, the first index is the row, and the second index is the column.

**Specialization** (... is a kind of me.)

*square matrix*, *rectangular matrix*, *sparse matrix*, *lower triangular matrix*, *upper triangular matrix*, *ragged matrix*, *uniform matrix*.

*Note:
Often implemented as an array.*

Author: PEB

Go to the Dictionary of Algorithms and Data Structures home page.

If you have suggestions, corrections, or comments, please get in touch with Paul Black.

Entry modified 17 December 2004.

HTML page formatted Mon Feb 2 13:10:39 2015.

Cite this as:

Paul E. Black, "matrix", in
*Dictionary of Algorithms and Data Structures* [online], Vreda Pieterse and Paul E. Black, eds. 17 December 2004. (accessed TODAY)
Available from: http://www.nist.gov/dads/HTML/matrix.html