# Irregular matrix

irregular matricesragged matrix
An irregular matrix, or ragged matrix, is a matrix that has a different number of elements in each row.wikipedia
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### Matrix (mathematics)

matrixmatricesmatrix theory
An irregular matrix, or ragged matrix, is a matrix that has a different number of elements in each row.
In mathematics, a matrix (plural matrices) is a rectangular array (see irregular matrix) of numbers, symbols, or expressions, arranged in rows and columns.

### Regular matrix

Regular matrix (disambiguation)

### Linear algebra

linearlinear algebraiclinear-algebraic
Ragged matrices are not used in linear algebra, since standard matrix transformations cannot be performed on them, but they are useful as arrays in computing.

### Array data structure

arrayarraysvector
Ragged matrices are not used in linear algebra, since standard matrix transformations cannot be performed on them, but they are useful as arrays in computing.

### Computing

computer technologycomputing technologyapplied computing
Ragged matrices are not used in linear algebra, since standard matrix transformations cannot be performed on them, but they are useful as arrays in computing.

### Iliffe vector

John Iliffevectors of vectors
Irregular matrices are typically stored using Iliffe vectors.

### Sparse matrix

sparsesparse matricessparsity

arrayjagged

### Dictionary of Algorithms and Data Structures

NIST Dictionary of Algorithms and Data Structures
* Paul E. Black, Ragged matrix, from Dictionary of Algorithms and Data Structures, Paul E. Black, ed., NIST, 2004.

### National Institute of Standards and Technology

NISTNational Bureau of StandardsBureau of Standards
* Paul E. Black, Ragged matrix, from Dictionary of Algorithms and Data Structures, Paul E. Black, ed., NIST, 2004.

### Matrix representation

storage scheme
These are particularly useful for storing irregular matrices.